Mathematics Middle School

The perimeter of the rectangle below is 42 inches. Find the value of x.

Answers

Answer 1

X=5 hope that helps you

Related Questions

Help me will give brainliest

Answers

Answer:

The first option is correct, 12/30 and 25/30

Step-by-step explanation:

To get common denominators, you need to find the GFC (greatest common factor) of 5 and 6, which is 30. Then you would need to make the fractions equal the same as the original fractions, by multiplying.

2/5 = ?/30 <- you can see that 30 is 6 times more than 5. so this means you multiply 2 by 6 to get 12. 12/30

5/6 = ?/30 <- you can see that 30 is 5 times more than 6. so this means you multiply 5 by 5 to get 25. 25/30

Can someone help me ASAP! Ill give you brainliest!
Im horrible in this skill, and it has to be correct :-)
Plz and thank you!

Answers

i think the answer for this is 265 :)

An airplane 30,000 feet above the ground begins descending at a rate of 2,000 feet per minute. Write an equation to model the situation.

What are the slope and Y-intercept?

Answers

Answer:

Step-by-step explanation:

Answer:

Slope: -2000

Y-intercept: 30000

Equation: Y=-2,000x+30,000

Step-by-step explanation:

The pane starts at 30,000 feet, giving up an y intercept or a starting point. Since the plan is descending, you know the slop will be negative.

Which property was used to simplify the expression?

distributive property
commutative property
associative property
inverse property

Answers

Inverse Property, I am pretty sure. Not sure though.

i do believe it’s Inverse property, sorry if that’s incorrect

Find the percent of the number.

50% of 70 is
.

Question 2
Explain your method.

Answers

Answer:

Step-by-step explanation:

Using proportions, you are correct:

70/x = 100/50

cross multiply

100x = 3500

divide both sides by 100 to get your answer.

35 because 70\2= 35.

can some one help me i have no idea what this is

Answers

Answer:

b=-25

Step-by-step explanation:

10= -2/5b

------ -------

-2/5 -2/5b

b=-25

Check:

-2/5(-25)=10

10=10

Answer:

b=-25

Step-by-step explanation:

What is the equation of this line in standard form?

A. 6x−7y=17

B.11x−6y=13

C.6x−11y=13

D.6x−11y=−13

Answers

Answer:

A. 6x- 7y= 17

Step-by-step explanation:

It is A. 6x- 7y=17

Hope this helps

PLZZ HELLLLLPPPPievjp

Answers

She can ride a bike 7 miles per hour

Please hurry, this is timed.
Profit is the difference between revenue and cost. The revenue, in dollars, of a company that manufactures televisions can be modeled by the polynomial 3x2 + 180x. The cost, in dollars, of producing the televisions can be modeled by 3x2 – 160x + 300. The variable x is the number of televisions sold.

If 150 televisions are sold, what is the profit?

A: $2,700
B: $6,000
C: $50,700
D: $51,300

Answers

Answer:

Step-by-step explanation:

Answer:

C: 50,700

Step-by-step explanation:

Its right my dudes

What equation has infinite many solutions?
1. 3(n+7)-6=2n+10+n
2. 3n-3=5(n+2)-2n
3. 2n+3(n-4)+5=5n-7
4. 2n-4=2n-2(n+2)

thank you :))

Answers

3 because
2n+3(n-4)+5=5n-7
2n+3n-12+5=5n-7
5n-7=5n-7
5n-5n=7-7
0

4,902 × 0.001 is the same as 4,902 ÷ 10 to the power of 3
True or False?

Answers

Answer:

False

Step-by-step explanation:

4902x0.001 = 4.902

4902/10 = 490.2

490.2^3 does not equal 4.902

Please answer if you know the answer.
Find x and give reasons.

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the answer is 30 have a good day

Please help. . . . . .

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16...........................,.,

The answer is 20

Steps
2x^2 - y X=3 Y= -2
2(3)^2 - (-2) 3 * 3 = 9
2(9) + 2
18 + 2
= 20

Please help! thank you so much! :)

Answers

It’s either A or B
6^2= 36
8^2= 64
36+64=100

Answer:

c is correct

Step-by-step explanation:

How many minutes are from 5:32 Pm to 6:19 Pm?? PLEASEEEE HELP!!!! THIS IS URGENT PLEASEE HELP

Answers

There are 28 minutes from 5:32 to 6:00 and 19 minutes from 6:00 to 6:19. Thus, there are 47 minutes from 5:32 pm to 6:19 pm.

A line passes through the point (2,-6) and has an initial value of 6. What is the rate of change for this line?
A. -12
B. -6
C. -1/6
D. 6

Answers

-6
Just did the question

-6

We assume "initial value" means the y-intercept is (0, 6). The rate of change is the "rise" divided by the "run" between the two points.

rise = -6 -6 = -12 . . . . difference of y-values

run = 2 -0 = 2 . . . . . . difference of corresponding x-values

rate of change = rise/run = -12/2 = -6

The rate of change of this line is -6.

I will award brainliest here

Answers

Answer:

2ND ONE

Step-by-step explanation:

I think it’s the 2nd one

A group of students is timed while sprinting 100 meters. Each student’s speed can be found by dividing 100 m by their time. Is each statement true or false?

Select the correct choice for each statement then explain your reasoning.

1. Speed is a function of time.
2. Time is a function of distance.
3. Speed is a function of number of students racing.
4. Time is a function of speed.

Answers

Answer:

The true statements are (a) and (d)

Step-by-step explanation:

(a). Speed is a function of time : As seen from equation (1) Speed of the students varies according to the value of time. So, This a true statement.

(b). Time is a function of distance : Distance is not varying in the equation (1), it is fixed to be 100. So, time is not a function of distance because here the distance is made constant. So, This is false statement.

(c). Speed is a function of number of students racing : Speed is not depending on the number of students racing so sped is independent of the number of the students racing. Therefore, Speed is not a function of number of students racing. This is False statement.

(d). Time is a function of speed : As seen from equation (1) Time of the students varies according to the value of their speed. So, This a true statement.

The true statements are (a) and (d).

The true statement are (a) and (b)

please help this is also very urgent

Answers

I think The answer is c

What you need to do is make them all into fractions and divide top by bottom i think! Sorry if I’m wrong

the table shows the probability for rain on different days what is the probability of rain on Monday and no rain on Tuesday.
Day /probability of rain
Monday/20%
Tuesday/30%
Wednesday/40%
Answers are
A 0.06
B 0.14
C 0.5
D 0.9

Answers

Answer:

A im pretty sure

Step-by-step explanation:

if it's not im sorry

the correct answer is A

Determine whether the representation is proportional.y= -9x

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Answer:

Yes it is

Step-by-step explanation:

y=-9x means that for every x value, the y value decreases by 9, so it is proportional because the value of y decreases the same amount each time. For example, if x=1, y=-9. If x=5, y=-45, and so on.

Yes it is proportional

The value of a share of stock decreases in value at a rate of $1.40 per hour during the first 3.5 hours of trading. Enter and solve an equation to find the decrease in the value of the share of stock during that time. Let x represent the decrease in value of the share of stock during 3.5 hours.

The equation to find the decrease in the value of the share of stock is x / _____ = _______

The decrease in value of the share of stock during 3.5 hours was $________

Answers

Answer:

x/3.5h = -$1.4

So, x = -$1.4 * 3.5h

= -$4.9

Step-by-step explanation:

Since your losing $1.4 every hour, the 1.4 is supposed to negative.

Also, since your losing that amount of money for 3.5 hours, we are trying to find the total of how much money is lost in the 3.5 hours. To do this, we have to do x/3.5h = -$1.4. But since you can't do x/3.5, we have to do inverse operation. When you divide 3.5 hours to the other side of the equation it becomes multiplication. So you do -$1.4 times 3.5 hours

and get -$4.9.

one stone on easter island is 12 meters high. the nose of the statue is 3.3 meters long. If the proportional statue is only 10 meters high. How long will the nose be? write your answer in a decimal

Answers

Answer:

The nose will 2.75 meters long.

Step-by-step explanation:

Answer: 2.5 meters long

pls help 20 points

Adult tickets for a movie cost $8 and children's tickets cost $6. If two adults and
three children go to the movies, how much will they pay?

Answers

8x2=16
6x3=18
16+18= 34

answer: 34$

Answer: 34

Step-by-step explanation: 8 times 2 is 16 and 6 times 3 is 18. You add 16+18 and the answer is 34

Footlocker buys sneakers for $60 each and marks up the price by 30% so they can make a profit. What is the selling price of the sneakers at Footlocker

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Answer:

now it would be $78

An irregular polygon is shown below:

The area of the irregular polygon is ____ square units.

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The answer is 26 square units

Answer:

26 Units Squared

Step-by-step explanation:

We can split the polygon into different sections the first section 4 units * 4 units = 16 units squared then by analyzing the other section we can find it is 5 units by 2 units = 10 units added together is 26 Units Squared

plz help!!! if both are answered= brainly

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Answer:

The Slope of the table = 2

the slope is 2! sorry if i’m wrong.

6&7 thanks for your help

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great! I think that would work perfectly!

Answer:

Length = 11 1/3 ft; Width = 4 2/3 ft

Step-by-step explanation:

First question:

The length is 2 more than twice the width, so

L = 2W + 2

Second question:

2L + 2W = 32

L = 2W + 2

Since the second equation is already solved for L, we can use the substitution method. Replace L of the first equation with 2W + 2, and solve for W.

2L + 2W = 32

2(2W + 2) + 2W = 32

4W + 4 + 2W = 32

6W = 28

W = 28/6 = 14/3 = 4 2/3

L = 2W + 2 = 2(14/3) + 2 = 28/3 + 6/3 = 34/3 = 11 1/3

L = 11 1/3

W = 4 2/3

Answer: Length = 11 1/3 ft; Width = 4 2/3 ft

Which statement compares the two numbers correctly?

0.799 ________ 0.8

0.799 > 0.8
0.799 = 0.8
0.799 < 0.8
0.8 < 0.799

Answers

Answer: 0.8 <0.799

Step-by-step explanation:

Just did the same quiz

Use the distributive property to expand 0.05(50 + 40).

Answers

Answer:

4.5

Step-by-step explanation:

0.05(50+40) = 0.05 x 50 + 0.05 x 40 = 2.5 + 2 = 4.5

i hope this helped, and if it did, please mark this as brainliest! thanks

Your answer is 4.5

Explanation-

.05•50= 2.5

.05•40= 2

Add them together and get 4.5

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