Mathematics High School

Polynomial Operations 1&2 Test 10 of 1610 of 16 Items Item 10 The height of a poster is 7x+10 and its perimeter is 20x+24 . What is the width of the poster?

Answers

Answer 1

Answer:

3x + 2

Step-by-step explanation:

The height of a poster is 7x+10 and its perimeter is 20x+24 . What is the width of the poster?

The shape of a poster = Rectangular shape

Hence:

The Perimeter of a Rectangle (Poster) = 2L + 2W

Where:

Length = Height = 7x + 10

Perimeter = 20x + 24

Therefore:

20x + 24 = 2(7x + 10) + 2W

20x + 24 = 14x + 20 + 2W

2W = 20x + 24 - (14x + 20)

2W = 20x + 24 -14x - 20

2W = 6x + 4

W = (6x + 4)/2

W = 3x + 2

Therefore, the width of the poster

= 3x + 2

Related Questions

Can someone help me do this question?
It’s solving equations

I will give you brainliest and 100 point

Answers

3(-2x-1)=2(x+5)

-6x-3=2x+10

-8x=13

x=-13/8

X=5 I kind of did this by trail and error but here’s my working outs
5-4=1
3/1=3
5-2=3

I really need help can anyone help me?​

Answers

The slope formula is y2-y1/x2-x1 so 5-(-1) =6 Then. 1-(-1)=2 so 6/2. =3. THE ANSWER IS 3
the slope= 1/3 do you need me to show an explanation as well?

Solve the equations -5(x + 3) = 25. Write the problem on the sketch pad then solve the problem algebraically. I need the answer and how you work it out :)

Answers

Answer:

-8

Step-by-step explanation:

-5x-15=25

-5x=40

x= -8

-5(x+3)=25
Divide both side by -5
x+3= -5
Move the constant and change it to positive
x= -5-3
Then add the numbers because they have the same sign, and you’re answer will be
x= -8

Which shape below does not have reflection symmetry can someone help me

Answers

Answer:

I would say the TRIANGLE  because it has none of the lines that a symmetry has.

PLEASEE I WANNA PASS PLEASE HELP!!!!
Which of the following functions represents f(n), the number of small squares in figure n?

A. f(n) = (n + 1)^2 – 1

B. f(n) = 2n^2 + 1

C. f(n) = n^2 – 1

D. f(n) = (n + 1)^2 + 1

Answers

I think it is b I’m not sure

Answer: i think its D or A....  :)

Step-by-step explanation:

i’ll click the heart please help

Answers

Answer:

The answer is just 4

Step-by-step explanation:

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the answers is 4..............

Solve the following system of equations graphically on the set of axes below.
y = -x + 2
x – 4y = -28

Answers

Slope for 1st is -1, y intercept is (0,2)
Slope for 2nd is 1/4, and y intercept is (0,7)

PLEASE HELP!! this is ratios

Answers

Answer:

1. 8:5

2. 17;4

3. 23:6

4. I don't know

1. 8:5
2. 4:19
3. 6:23
4: How you find an equivalent fraction can either be dividing or multiplying by 2. 2 equivalent ratios to question 1 would be 16:10 and since we can’t divide by 5, we multiply again which would be 32:20.
(Hope this was helpful ^^)

If in August Bruiser weighed 84 pounds, how
could he get back to that weight in October?

Answers

Answer:

eating healthy

Step-by-step explanation:

eating healthy foods helps you maintain the weight you want

turn 12y=8x+2 into slope intercept form

Answers

Answer:

y=2/3x+1/6

Step-by-step explanation:

WHat is the greatest common factor (GCF) of 9 and 27

Answers

Answer:

9

Step-by-step explanation:

9/9=1

27/9=3

Please help me!!!!!!

Answers

Answer:

B. Y2-Y1/X2-X1. This would equal -13/-8, which cancels out to positive.

Step-by-step explanation:

Anybody good in geometry and know how to do this? Free Brainliest and points!

Answers

Answer:

Step-by-step explanation:

That is a horizontal reflection about the vertical line x=2.

Answer:

the answer is B. reflection over y = 4

Step-by-step explanation:

You invest $4000 into an account that compounds interest on a quarterly basis at 3%. how much money will you have after 5 years? Compound interest formula: A = P(1+r/n)^(nt)

Answers

Answer:

26666.6

Step-by-step explanation:

So sorry if this is wrong i tried

The amount after 5 years is $4,644.74.

What is compound interest?

It is the interest we earned on the interest.

The formula for the amount earned with compound interest after n years is given as:

A = P[tex](1 + r/n)^{nt}[/tex]

P = principal

R = rate

t = time in years

n = number of times compounded in a year.

We have,

P = $4000

n = 4

r = 3%

t = 5 years

A = 4000 [tex](1 + 0.03/4)^{20}[/tex]

A = 4000 x [tex]1.0075^{20}[/tex]

A = $4,644.74

Thus,

The amount after 5 years is $4,644.74.

Learn more about compound interest here:

https://brainly.com/question/13155407

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a customer left a tip of 25$ this is 20% of his bill. whats the price of the bill?

Answers

Answer:

i think 150

Step-by-step explanation:

Answer:  $30.00

Step-by-step explanation:

First, convert the 20% to an actual number that can be used in a calculation. For percents, this is always done by simply dividing the percent (in this case 20%) by 100%.So, the conversational term "20%" becomes 20% / 100% = 0.20 in terms of a real mathematical number.

0.20 x $25.00=$5.00.

$25.00 + $5.00 = $30.00.

✨CORRECT ANSWER GETS BRANLIEST✨



Simplify the expression.

6^24/6^4

A. 6^30
B. 6^22
C. 1^30
D. 1^22

Answers

Answer:

i got 1/9 so im not sure if any of those are correct

Answer:

im not sure but i think its A

Step-by-step explanation:

Olivia has $9,050 in a savings account that earns 2.5 % annually. How much will she earn in interest in 2 years?​

Answers

Answer:

452.5

Step-by-step explanation:

9050 x 0.025

226.25 x 2

452.5

452.5 Hope it helps !!!

please help me with this math problem!!

Answers

Answer:

P(A)=1/3    P(B)=5/12

P(C)=1/4    P(A or B)=3/4

P(B or C)=2/3    P(A,B, or C)= 1

When graphed, a system of equations forms two lines that overlap completely. What is the solution set of this system of equations? Explain why it has this solution set.

Answers

Answer:

Infinite solutions

Step-by-step explanation:

Because the lines are the same there are an infinite number of solutions

Plz answer will mark brainliest

Answers

Answer:

(5.5, 6)

Step-by-step explanation:

Find the difference between them and then divide by 2 and add to one point

6(x+-2) please help me asap, thank you!

Answers

Answer:

6x - 12 or x - 2

Step-by-step explanation:

6(x - 2)

use distributive property

6x - 12

im not sure if u want me to simplify but im pretty sure its "x - 2" from dividing both variables by 6

The ansewer is: 6x-12

Step-by-step explanation:

We first use destributive property

this means we mulitply whatever is next to the left side of the parenthisis to whats inside

And that is it.

What is the slope of the line? PLS Help

Answers

Answer:

-2/5

Step-by-step explanation:

Answer: -2/5x

Step-by-step explanation: Always remember rise over run, so I went down 2 and right 5 and got -2/5x.

BRAINLIEST AND 20 POINTS COME QUICKKKKKKK

Answers

Answer:

Im pretty sure it is B

Step-by-step explanation:

at first I said D but then I realized it said positive

Please help I will give points and mark brainliest

Answers

Answer:

(3,3)

Step-by-step explanation:

D is on (1,1) so times by k which is 3 = (3,3)

PLEASE HELP! IT WOULD BE SO GREATLY APPRECIATED EVEN IF YOU DON'T KNOW THE ANSWER TO ALL OF THEM!

Answers

1. 3
2. 4
3. 1/3
4. 1/2

In this case they just multiplied all numbers In the first set by a number to get the second set, just check that each one in the same position gives you the same answer and your good.

Elian and Alberto won tickets at a arcade. When they put their tickets together they had exactly 100. Alberto won 10 tickets less then Elian. Let A be the number of tickets Alberto won and e be the number of tickets Elian won.

Answers

Answer: See explanation

Step-by-step explanation:

Number of tickets Elian won = e

Number of tickets Alberto won = A = e - 10

Therefore, Elian + Alberto ticket = 100

e + (e - 10) = 100

2e - 10 = 100

2e = 100 + 10

2e = 110.

e = 110/2

e = 55

Elina has 55 tickets

Alberto has 55-10 = 45 tickets

Given f(x)= x3 and g(x) = 2x + 7, express
(fºg)(x)'as a function of x.

Answers

Answer:

(f∘g)(x)=(2x+7)^3

Step-by-step explanation:

substitute g(x) in f(x)

(f∘g)(x)=f(g(x))=f(2x+7)=(2x+7)^3=(2x+7)^3

can someone help me

Answers

TURTLES AREN'T GREEN?!?!?!?

Devon draws one marble from a bag containing 5 red, 3 green, and 4 yellow marbles. What is the probability that Devon draws a green marble?

Answers

Answer:

3/12 or 1/4 after simplifying

Step-by-step explanation:

3 chances of getting green because there are 3 green and there is a total of 12 marbles so 3 out of 12, which is equal to one fourth.

5(2x -1)= -5 + 10x solve the following equation for x
plsss help

Answers

Answer:

=0

Step-by-step explanation:

not sure if its right but give it a go

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