1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tasya [4]
3 years ago
15

Given the rectangles perimeter, find the unknown side lengths.

Mathematics
1 answer:
Dominik [7]3 years ago
3 0

The perimeter is just adding all the sides together.

a.) 180 = 40 + 40 + x + x

180 = 80 + 2x Subtract 80 on both sides

100 = 2x Take 1/2 of 100 to get x

x= 50cm


b.) 1000 = 150 + 150 + x + x

1000 = 300 + 2x Subtract 300 on both sides

700 = 2x Take 1/2 of 700 to get x

x = 350

You might be interested in
28 is what % of 20<br><br> 28 is ___% of 20
Greeley [361]
28 is 140% of 20

Hope this helps!
7 0
3 years ago
How do I solve The sum of a number and 3 is subtracted from 10 the result is 5
meriva

State the given in the question

Given that the sum of a number and 3 is subtracted from, the result is 5

State what is to be found in the question

We are to find the number. In other to achieve this, we would follow the steps below:

Step 1: Represent the number with an unknown

Let x represent the number

Step 2: Interpret the given statement mathematically

If x is the number, then the sum of the number and 3 would be

x+3

Then the sum of a number and 3 subtracted from 10 would be

10-(x+3)

Finally, when the sum of a number and 3 subtracted from 10, the result is 5, would be

10-(x+3)=5

Step 3: Solve for x in the mathematical interpretation of the given statement

The value of x is as calculated as shown below:

\begin{gathered} 10-(x+3)=5 \\ \text{Open the bracket or the parenthesis} \\ 10-x-3=5 \\ \text{collect like terms} \\ 10-3-5=x \\ 7-5=x \\ 2=x \\ \text{Therefore:} \\ x=2 \end{gathered}

Hence, the number is 5

4 0
1 year ago
PLEASE HELP!! I WILL MARK YOU BRANLIEST! THANKS :)
Ostrovityanka [42]

Answer:

its b

Step-by-step explanation:

5 0
3 years ago
CAN SOMEONE HELP???????????
guapka [62]

Answer:

g(-1) = -1

g(-0.25) = 0

g(2) = 2

Step-by-step explanation:

6 0
3 years ago
Plz help for 10 points, please
qaws [65]

x/3 -2 =25

add 2 to each side

x/3-2+2 = 25 +2

x/3 = 27

multiply buy 3

x/3 *3 = 27*3

x = 81

Choice A

3 0
3 years ago
Other questions:
  • Corey is 12 years older than Donovan. Five years ago the sum of their age was 28. How old are they now?
    12·1 answer
  • What is the logical conclusion, based on the information given in the problem
    10·1 answer
  • The sum of the interior angles of any triangle is equal to:
    11·1 answer
  • Which expression represents the sum of (12y-8x) and (6x-24y)
    14·1 answer
  • What is 2/3, 0.67, 5/9, 0.58, 7/12 in order from least to greatest
    5·2 answers
  • Tell me what each angle is in the following triangle: angle 1 is 8x, angle 2 is 2x+3, angle 3: 30 degrees. give me the two answe
    9·1 answer
  • A project manager had a taxable income of $52,150 last year. If she paid 10% of her income between $0 and $8350, 15% of her inco
    11·2 answers
  • What is the value of the expression 30+(-6)?
    8·2 answers
  • 1. Which of the following is an irrational number? How do you know? Use key words and definitions to explain your answer choice.
    8·1 answer
  • PLEASE HELP ME ASAP 20 POINTS SHOW WORK
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!