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inn [45]
4 years ago
13

Write an expression to model the perimeter of the rectangle. Length is x-9 and width is 3x-4. Part b The perimeter of the rectan

gle is 138. What is x. Plzz I will give you 100 points
Mathematics
2 answers:
koban [17]4 years ago
5 0

Step-by-step explanation:

To find the perimeter of something, we add all of the measurements of the sides together.

A rectangle has 4 sides, this means we must double the algebraic hints given to us.

If we add them all up together it will look like this:

x-9+x-9+3x-4+3x-4=138

If we simplify it by collecting the like terms:

8x-26=138

We add 26 onto 138

8x=164

To find out what x equals, we divide by 8:

164÷8= 20.5

Answer:

x=20.5cm

x-9 is 11.5

3x-4 is 57.5

I know that you will not give 100 points but just wanted to help.

Alexxx [7]4 years ago
3 0

Answer:

A: P = 8x - 26

B: x = 20.5

Step-by-step explanation:

Part A

Equation

P = 2*(L + W)

Givens

  • L = x - 9
  • W = 3x - 4

Solution

  • P = 2*(x - 9 + 3x - 4)
  • P = 2*(x + 3x - 9 - 4)
  • P = 2*(4x - 13)
  • P = 8x - 26

Part B

Given

P = 138

Equation

P = 8x - 26

Solution

  • 138 = 8x -26           Add 26 to both sides
  • 138 + 26 = 8x         Combine the left
  • 164 = 8x                  Divide by 8
  • x = 20.5                  Answer
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If people have 6 apples and 46 lemons each, how much would 423 people get?<br><br> [URGENT]
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Answer:

2,538 apples and 19,458 lemons.

Step-by-step explanation:

1 person gets 6 apples and 48 lemons. Now there are different ways of solving this. One is using a calculator and/or multiplication. If 423 people get 6 apples each, we need to get the total by multipling.

423*6=2538 apples.

Now lets do the same thing with the lemons.

423*46=19458 lemons.

There would be a total of 2,538 apples and 19,458 lemons for 423 people.

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4 years ago
10. Under what circumstances are two non <br> right triangles congruent?
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3 years ago
Write each of these statements in the form "if p, then q" in English.
Artist 52 [7]

Answer:

A. If you send me an e-mail message, then I will remember to send you the address.

B. If you were born in the United States, then you can be a citizen of the United States.

C. If you keep your textbook, then it will be a useful reference in your future courses.

D. If the Red Wings’s goalie plays well, then they will win the Stanley Cup.

E. If you get the job, then you had the best credentials.

F. If there is a storm, then beach erodes.

G. If you can log on to the server, then you must have a valid password.

H. If you begin your climb too late, then you will not reach the summit

Step-by-step explanation:

The statement which is written in the form, "if p, then q" symbolized by p-->q is known as a conditional statement. p is known as the hypothesis, while q is the conclusion. In such statements, the hypothesis and the conclusion may or may not have a correlation. But for the statement to be true, the conclusion must be true even if the hypothesis is wrong.

In statements A, the condition for sending the address is if I receive an email message.

In statement B, the condition for being a citizen is if one is born in the United States.

In statement C, the condition for my books to be a useful reference is if I keep them.

In statement D, the condition for winning the Stanley Cup by the Red Wings is if their Goalie plays well.

In statement E, the condition I get the job is if I had the best credentials.

In statement F, the condition for the beach eroding is if there's a storm.

In statement G, the only way I can log on to the server is if I have the correct password. In each of these statements, the conclusions correlates with the hypothesis. The conditions in the hypothesis need to be met for the conclusion to be true.

Statement H gives a conclusion which depends on not meeting the conditions of the hypothesis which is that if I don't start climbing the mountain early (if I start late), I will not reach the summit.

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