Which of these equations has the solution x = 5?
A. x + 7 = 3(x - 1)
B. 12 - x = x + 4
C. 2(x + 1) = 3(x - 8)
D. 2(x - 4) = 7x - 1

Answers

Answer 1
The answer is A
X+7 = 3(x-1)
X+7 = 3x-3
-x on both sides
+3 on both sides
10 = 2x
Divide by 2
X=5
Answer 2
Answer is A
3(x-1)=3x-3
X+7=3x-3
-x both sides
+3 both sides
10=2x
Divide by 2
X=5

Related Questions

helpppp- just match them pls

Answers

Multiplication is division
Squaring is square root
Addition is minus
cubing is cube root
Multiplication -> Division
Squaring -> Taking the square root
Addition -> Subtraction
Cubing -> Taking the cube root

At the sewing store, Samantha bought a bag of mixed buttons. She got 400 buttons in all. 400 of the buttons were large. What percentage of the buttons were large?

Answers

100% of the buttons were large.
explanation
she got 400 buttons
400 were large
400/400 as a percent is 100%

Answer:100% of the buttons were large.

she got 400 buttons

400 were large

400/400 as a percent is 100%

Step-by-step explanation:

Explanation she got 400 buttons

400 were large

400/400 as a percent is 100%

Please help I'll give u brainleist!

Answers

Answer:

Step-by-step explanation:

probability you roll a one is 1/6

probability you roll an 8 is 0/6

add them and the answer is 1/6

A decagon is a 10-sided figure.
Divide the decagon into triangles.

Answers

120 triangles can be divided from a decagon

Answer:

8 triangles

Step-by-step explanation:

PLEASE HELP I NEED THE ANSWER ASAP!!
(100 POINTS IF RIGHT!!!!!)

Answers

Answer:

1/2

Step-by-step explanation:

If the fraction of the box of pancake mix that Merida uses on Friday is not given, it is difficult to determine the exact fraction that she used on Saturday. However, if we assume that the fraction of the box of pancake mix used on Friday is 1/2 (which is a common amount for a recipe that serves 4-6 people), then we can solve for the fraction used on Saturday.

On Friday, Merida used 1/2 of the box of pancake mix.

On Saturday, she used 1 times as much pancake mix as Friday, or 1/2 * 1 = 1/2 of the box of pancake mix.

Therefore, Merida used 1/2 of the box of pancake mix on Saturday.

Note that if the fraction used on Friday is different, the fraction used on Saturday will also be different.

1/2 I took the test so it’s right

At a recent football game of 8,450 in attendance, 150 people were asked what they prefer on a hot dog. The results are shown.


Ketchup Relish Chili
54 36 60


Based on the data in this sample, how many of the people in attendance would prefer chili on a hot dog?
5,070
3,380
2,986
2,084

Answers

Answer: 3,380

Step-by-step explanation: THIS IS MY GUESS.

Since we know that 150 people were surveyed, and only 60 wanted chili, we can write an equation to get the percentage of people who wanted chili as 60/150. We can simplify that to get 6/15 and then simplify again to get 2/5. 2/5 simplifies to 40% as a percentage. 40% of 8,450 (or 0.4 x 8,450) would be 3,380.

Answer 3380
Explanation
We will find the ratio of 54 36 and 60 which is 9:6;10
So now total attendance is 8450.
So 8450 * 6 / 15= 3380

YALL! WHAT IS THE ANSWER?! HELP ASAP!
q:
choose the different ways that a graph can be misleading (select all that apply)
a:
1- the y-axis starts at zero and uses consistent intervals
2- different bar heights are used on the same graph
3- the y-axis doesn't start at zero
4- the intervals on the y-axis are too large
5- different bar widths are used on the same graph
6- the y-axis starts at zero but has different intervals

Answers

Answer:

Step-by-step explanation:

Here’s the answers :

6-The y -axis starts at zero but has different intervals.


5- Different bar widths are used on the same graph.


3- The y -axis doesn't start at zero.

When playing a board game, Leilani rolls a number cube twice to determine her next move. In her past 10 moves, she’s rolled two 5s once. How many times does she expect to again roll two 5s in her next 30 moves? Which statement compares this prediction to the theoretical probability of rolling two 5s.

Answers

Answer: Leilani has the probability of rolling two 5s three times on her next 30 moves.

Step-by-step explanation: If on average Leilani rolls once in 10, then we can predict that she will at least roll 3 in 30.

Which number describes the median of the data given in the table?
Responses
A 24.224.2
B 2323
C 2222
D 2828
Question 2
Which number describes the range of the data given in the table?
Responses
A 66
B 2323
C 2222
D 28

Answers

The number which describes the median of the data given in the table is 23. option B.

The number which describes the range of the data given in the table is 6. Option A.

What is the median and range of the data given in the table?

Arrange the average gas mileage in ascending order

22, 22, 23, 26, 28

The median of a data refers to the middle number of the data set when arranged either in ascending order or descending order.

The median is 23

Hence, the range of the data set refers to the difference between the highest and lowest data.

= 28 - 22

= 6

Read more on median and range:

https://brainly.com/question/13278246

#SPJ1

whats the surface area? sorry if im annoying

Answers

Answer:

The surface area of a solid object is a measure of the total area that the surface of the object occupies.

Step-by-step explanation:

SA=2B+Ph

Find the area of each face. Add up all areas.

the table shows the possible outcomes of spinning the given spinner twice. Find the probability of the spinner landing on 1 at least once.

The probability is?

LOOK AT THE PICTURE AND PLEASE HELP!!

Answers

Answer: The probability or percentage of the spinner landing on 1 once is 36% or 9 out of 25.

Step-by-step explanation:

PLS HELP MEEE All of the number sentences are true except.

7 3 = 343
4 2 = 16
6 3 = 18
11 2 = 121

Answers

Answer:

I think its the second one, 4 2 = 16. If not then the third one.. I hope this helps!

The answer is 6 3= 18

7x7x7=343
4x4=16
6x6x6=216
11x11=121

please help me with these problems I will give brainlist

Answers

Step-by-step explanation:

Slope intercept form of a line is

y = mx + b      where    m = slope    b = intercept

1)   y = 2x + 4

3) y = -3/4 x  + 0   = - 3/4 x

I think you can see how to do the other two now......

7th grade - Find the surface area of this trapezoidal prism. Please help ASAP I'll give brainliest!!!

Answers

Answer:

[tex]380 \text{ m}^2[/tex]

Step-by-step explanation:

To find the surface area of the trapezoidal pyramid, we can use the formula:

[tex]SA = 2(b) + (p \cdot d)[/tex],

where [tex]b[/tex] is the area of the base, [tex]p[/tex] is the perimeter of the base, and [tex]d[/tex] is the prism's depth.

First, we should find the area of the base using the area of a trapezoid formula.

[tex]A_\text{trap} = \dfrac{b_1 + b_2}{2} \cdot h[/tex]

[tex]b = \dfrac{15 + 5}{2} \cdot 7[/tex]

[tex]b = 10 \cdot 7[/tex]

[tex]b = 70 \text{ m}^2[/tex]

Now, we can plug the given dimensions along with the base area into the surface area formula.

[tex]SA = 2(b) + (p \cdot d)[/tex]

[tex]SA = 2(70) + ([15 + 10 + 5 + 10] \cdot 6)[/tex]

[tex]SA = 140 + (40 \cdot 6)[/tex]

[tex]SA = 140 + 240[/tex]

[tex]\boxed{SA = 380 \text{ m}^2}[/tex]

The answer would be 380m2

The language arts teacher wants to know whether the students in the entire school prefer a debate or an speech. The teacher draws a random sample from the following groups:

All teachers in the school
All boys in each grade
All students in the speech club
All students in each grade
Which group best represents the population she should take a random sample from to get the best results for her survey? (5 points)

a
All teachers in the school

b
All boys in each grade

c
All students in the speech club

d
All students in each grade

Johnny wants to know how many students in his school enjoy watching science programs on TV. He poses this question to all 26 students in his science class and finds that 75% of his classmates enjoy watching science programs on TV. He claims that 75% of the school's student population would be expected to enjoy watching science programs on TV. Is Johnny making a valid inference about this population? (5 points)

a
Yes, it is a valid inference because his classmates make up a random sample of the students in the school

b
Yes, it is a valid inference because he asked all 26 students in his science class

c
No, it is not a valid inference because he asked all 26 students in his science class instead of taking a sample from his math class

d
No, it is not a valid inference because his classmates do not make up a random sample of the students in the school
A researcher posts a magazine advertisement offering $30 in exchange for participation in a short study. The researcher accepts the first three people who respond to the advertisement. Which of the following statements is true about the sample? (5 points)

a
It is not a valid sample because it is not a random sample of the population.

b
It is a valid sample because the first three people were selected to participate.

c
It is a valid sample because money was offered to participants.

d
It is not a valid sample because it is only a short study.

Answers

Answer:

Q1: D

Q2: D

Q3: B

Step-by-step explanation:

Q1: It says it in the question.

Q2: He asked the ones in his science class so they would obviously prefer science, but that is not true for the rest of the students.

Q3: It is random because the first 3 people were chosen regardless of who they were, and it is still a valid sample even if the study is short.

D, D,B, that’s what I think is right

can someone help me please? I know that I will be using the theoretical probability equation, but I just don’t know what to do

Answers

Answer:

Step-by-step explanation:

Hi there,

We know that a pair means two and so for each pair of socks he has, we are going to multiply that number by two to find the individual amount.

White socks: 2 pairs x 2 = 4 total white socks

Black socks: 4 pairs x 2 = 8 total black socks

Blue socks: 1 pair x 2 = 2 total blue socks.

Now, you add up the total amount of individual socks in the drawer.

4+8+2 = 14 socks.

We are trying the find the probability that he is going to pick a black sock.  The amount of black socks is going to go on the numerator of the fraction and the total amount of socks in the drawer is going to go on the denominator.

8 black socks  /  14 total socks

Now that we have this fraction, we need to simplify it.  The number 8 and 14 are both divisible by 2, so we now have the fraction (4/7).

What this means is that, theoretically, if he randomly pulled out 7 socks, that 4 of the socks he pulls out should be black, leaving the probability he picks out black socks to be (4/7) of the time or about 57% likely to happen.

I hope this helps, let me know if you have questions :)

What is the median of this data set?

Answers

Answer:

58

Step-by-step explanation:

It is the middle point/dot

in the box with the line

(58) the line in the box plot shows the median or in other words the most frequent occurrence of that amount statistically.

HELPP!!

The table shows the possible outcomes of spinning the given spinner twice. Find the probability of the spinner landing on 1 at least once.

The probability is?

Type an integer or a fraction

Answers

Answer: 7/16

Step-by-step explanation:

Hope this helps! Just find the number that fit the criteria (at least 1 one), and divide it by total outcomes/possibilities.

PLS HELPPPPPP *100 POINTS***

Answers

Answer:

6.9 if a triangle pyramid

Step-by-step explanation:

If triangle pyramid,

1/3(b)(h)

1/3(200)(h)=460

h=6.9

if it is a pyramid then 6.9

Give the measure of the angle that is complementary to the given angle. (Example 1)

Answers

Answer:

45

70

36

52

20

130

Step-by-step explanation:

complementary means it adds up to 90 degrees.

subtract that angle from 90 to get the complementary angle

supplementary angles add up to 180 degrees

subtract that angle from 180 to get the supplementary angle

Answer:

1) 45

2) 60

3) 36

4) 52

5) 20

6) 130

Step-by-step explanation:

In the first 3 questions, it's asking us for a complementary angle to the given angle.  A complementary angle is when 2 angles add up to 90 degrees.  So, we are given 45 degrees already, so we can subtract that from 90 to find it's complementary angle, which is also 45.  Continue to subtract from 90 for the next 2 problems.

In questions 4-6, we are asked to find an angle that is supplementary.  A supplementary angle is when 2 angles add up to 180 degrees.  We are given an angle that measures 128 degrees, so subtract 180-128 to get 52 degrees.  Continue subtracting from 180 for the next 2 problems.

Hope this helps! :)

pls help its over due

Answers

Your selected answer is correct. The 35 needs to be converted to 0.35 and then multiplied by 20.

___ is 35% of 20. So 0.35 x 20 = 7. The answer to the bottom left box is 7.

Answer:

The correct answer is 7

The stem-and-leaf plot below shows the percentage scores on a recent sixth-grade science test.

Use the stem-and-leaf plot to determine the mode of the test scores.

Answers

If 8 | 2 = 82%, then the mode is 74%.

7 | 4 appears the most often.

Caden rolls two fair number cubes numbered from 1 to 6. He first defines the sample space, as shown below:

(1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (1, 6)
(2, 1), (2, 2), (2, 3), (2, 4), (2, 5), (2, 6)
(3, 1), (3, 2), (3, 3), (3, 4), (3, 5), (3, 6)
(4, 1), (4, 2), (4, 3), (4, 4), (4, 5), (4, 6)
(5, 1), (5, 2), (5, 3), (5, 4), (5, 5), (5, 6)
(6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (6, 6)

Based on the sample space, what is the probability of getting a total of 6? (5 points)

a. 5 over 36
Selected:b. 6 over 36This answer is incorrect.
c. 7 over 36
d. 8 over 36

Answers

Answer:

B. 6 over 36

Step-by-step explanation:

As we are given the sample space, the events that sum to 6 are:

{(1,5), (2,4), (3,3),(4,2),(5,1)}

Let n(S) be the number of items in sample space

n(S) = 36

Let E be the event the sum is 6

Then,

n(E) = 6

So,

P(Sum of two cubes is 6) = n(E) / n(S)

= 6/36

So, the correct answer is:

B: 6/36

Answer:

B. 6 over 36

Step-by-step explanation:

100 PTS *MIDDLE SCHOOL 7th GRADE***** HELP PLEASE!

Answers

Answer: x=108 degrees

Step-by-step explanation:

Since ST is a straight line, it measures 180 degrees.

This means that

x+(2/3)x=18


The simplified version is 5x/3=180. Now, we multiply both sides by 3. The equation becomes 5x=540 you would divide 5 by both sides which is ultimately x=108.

Answer:

x=108 degrees

Step-by-step explanation:

We know that since ST is a line, it equals a total of 180 degrees.

Let's write an equation:

[tex]180=x+\frac{2}{3}x[/tex]

simplify

[tex]180=\frac{5}{3} x[/tex]

divide both sides by 5/3

108=x

So, x=108 degrees.

Hope this helps! :)

Find the error(s) and solve the problem correctly.
Sarah was asked to solve the following problem. Identify her errors and explain how to correct her mistakes.

Answers

Answer:

[tex]5x^3-18x^2+2x+21[/tex]

Step-by-step explanation:

In the second step, -9x-21 should be 9x+21. This is because -3 in x-3, and -3x-7 in 5x²-3x-7 are both negative, so each term's product should be positive.

Also, in the third line, she wrote -3x²-15x² as -18x⁴ instead of -18x²,and similarly, she wrote -7x-9x as -16x² (however this is wrong anyway because step 2 was done incorrectly).

If we continued off from the second step with these corrected errors:

[tex]5x^3-3x^2-7x-15x^2+9x+21\\5x^3-18x^2+2x+21[/tex]

Therefore, the correct simplification is [tex]5x^3-18x^2+2x+21[/tex].

Answer:

5x^3-18^2 +2x +21

Step-by-step explanation:

Pls answer this for me

Answers

Answer : B and D (the second option and the fourth option)

In total, there are 100 blocks. There are 4 boxes.
100/4 = 25 therefore B would work.
D would also work as 41-16=25 and 9+16 is also 25, meaning boxes C and D would be equal. Boxes A and B would also be equal as 32-7=25 and 18+7=25.


A would NOT work as 41-21 is equal to 20, meaning box C would be lacking 5 blocks. C would NOT work as whilst A and B would be equal, C and D would not be. E would also NOT work as nothing would be equal at all.
B: Remove all blocks and make four equal piles of 25, then put each pile in one of the boxes and D: Remove 7 blocks from box 1 and place them in box 2 and remove 16 block from box 3 and place them in box 4

Find the surface area of the square pyramid shown. Label the net to help you.


I have to show work

Answers

Answer: 40 inches squared

Labels are in the pictures

Step-by-step explanation:

To find the surface area, find the area of each side.

Square (base) : side * side = 4*4 = 16

Triangle (sides) : (base * height)/2

Assuming each side is a isosceles triangle, the base 4/2 = 2

(2*6)/2 = 12/2 = 6

Since there are 4 triangles, we can multiply 6 by 4 to get the combined area. We then add the area of the square to get the final result.

6*4 + 16 = 24+16 = 40

Write an equation to match each graph.....

Answers

First graph matches with Y=|x-2|
Second graph matches with Y=|x-2|-2
y=|x-2|
y=|x-2|-2
these are an equation for both
hope this helps!!!

Can you please help?

Answers

Answer:

30.68 cm²

Step-by-step explanation:

Area of the shaded region

= Area of rectangle - Area of semicircle

Given,

Height (h) = 4.5 cm

Base (b) = 9 cm

Diameter (d) = 5 cm

Formula

Area of the rectangle = bh

Area of the rectangle

= 9 x 4.5

= 40.5 cm²

Formula

Radius (r) = d/2

r = 5/2

r = 2.5 cm

Formula

Area of the semicircle = πr²/2

Note

The value of π is 3.14

Area of the semicirlce

= (3.14 x 2.5²)/2

= (3.14 x 2.5 x 2.5)/2

= 19.625/2

= 9.8125 cm²

Area of the shaded region

= Area of rectangle - Area of semicircle

= 40.5 - 9.8125

= 30.6875 cm²

~ 30.68 cm² approximately

Which answer choice best represents 50/15

?

Answers

Answer:

3 1/3

Step-by-step explanation:

       See attachment below

Answer:

Option (A) 3 1/3

Step-by-step explanation:

Let’s solve the improper fraction into a mixed fraction.

The simplified fraction will get a remainder but we I’ll not solve the remainder.

50/15

Quotient = 3

Remainder = 5

Fraction = 3 5/15

               = 3 1/3


Hope my answer helps you ✌️

Mark BRAINLIEST

Other Questions
Do you think alliances help prevent or fuel conflict? Ground your answer with at least one historical circumstance that you have learned in this lesson. retained earnings represent the cumulative total of all earnings, net of dividends, that have been retained and reinvested in the firm since its inception.T/F u.s. workers will see increased competition in the future due to: a short-term capital loss carryover to the current year retains its character as short-term and is combined with the short-term items of the current year. the total thermal resistance of a system is 36.7 k/w and the area of heat transfer is 1.02 m2. calculate the overall heat transfer coefficient for the system. 1. The lessee can purchase the leased asset for a minimal $5 payment at the end of the lease and the lease term is for a major part of the asset's remaining economic life. The lease term is 5% of the leased asset's useful life and there is no option for the lessee to purchase the asset. 2. 3. The lessor retains title to the asset, and the lease term is 3 years on an asset that has a 10-year useful life. Government spending influences the economy by:A. setting the salaries for employees in all private industries.B. influencing the brands of products the country is allowed toproduce.C. deciding on the prices for goods available to consumers.OD. determining which government programs get the most funding. In two factor ANOVA, an F ratio is calculated for each differentsum of squares.mean square.factor.null hypothesis. an area of land has been planted with christmas trees. on december 1, twelve years from now, the trees will be ready for harvest. at that time, the standing christmas trees can be sold for $2,000 per acre. the land, after the trees have been removed, will be worth $400 per acre. there are no taxes or operating expenses, but also no revenue from this land until the trees are harvested. the interest rate is 11%. 1) what can we expect the market price of the land to be? 2) suppose that the christmas trees do not have to be sold after 10 years, but could be sold in any year. their value if they are cut before they are 10 years old is zero. after the trees are 10 years old, an acre of trees is worth $2,000 and its value will increase by $100 per year for the next 30 years. after the trees are cut, the land on which the trees stood can always be sold for $400 an acre. when should the trees be cut to maximize the present value of the payments received for trees and land? what would be the market price of the acre of the land? 3) will your reply on the second question change if the rate becomes 15%? 8%? How to connect wireless router to laptop in cisco packet tracer? People tend to use emotion-focused, rather than problem-focused, coping strategies in which situation? Starting with 100.0 grams of carbon and an excess of silicon dioxide and calcium phosphate, howmany moles of phosphorus will be produced?2 Caz(PO4)2 +6 SIO, 100 - 6 Casioz + PA+ 10 CO If 36. 7 mL of 3M MgCl2 is used what is the mass of Mg(OH)2 produced? recall the role of tropymyosin in regulating keletal muscle contraction. will a mutant form of tm that can bind to the actin filaments but is uable to bind the troponin complex function in a dominant-negative fashion to affect muscle contraction?A. No, because the mutant TM and troponin will bind to actin filaments independentlyB. No, beacuse the mutant TM cannot bind to the action filamentsC. No, beacuse the mutant TM will be displaced easily from the actin filamentsD. No, beacuse the mutant TM can never be displaced from the actin filamentsE. No, beacuse the mutant TM can still bind strongly to calcium ions calculate the hydronium ion concentration and the ph of the solution that results when 75.0 ml of 0.405 m ch3cooh is mixed with 104 ml of 0.210 m naoh. acetic acid's ka is 1.70 105 when you look down into a swimming pool, are you likely to underestimate or overestimate its depth? explain why and draw a diagram of the bending light rays to demonstrate this. calculate the enthalpy change for the following reaction given: dc-h= 414 kj/mol, dcl-cl=243 kj/mol, dc-cl=339 kj/mol, dh-cl=431 kj/mol. ch4 cl2 ch3cl hcl FILL IN THE BLANK the situation where a country can produce a good at a lower opportunity cost than other country is called a(n) __________ advantage. which of the following remote access mechanisms on a windows system lets you watch what a user is doing and, if necessary, take control of the user's desktop to perform configuration tasks? the price elasticity of demand for milkshakes is about 0.60. other things equal, this means that a 20 percent increase in the price of milkshakes will cause the quantity of milkshakes demanded to: