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
loris [4]
3 years ago
15

How do i solve this.

Mathematics
1 answer:
nignag [31]3 years ago
4 0

Let us set up some variables:

  • L: Length
  • W: Width

Now let us set up some equations based on the facts:

  • length of rectangle is 4 times its width --> L = 4W
  • perimeter of rectangle is 80 --> 2L + 2W = 80

Equations:

   L = 4W     -- equation 1

   2L + 2W = 80 -- equation 2

   Plug the value of L from equation 1 into equation 2

    2(4W) + 2W = 80

     8W + 2W = 80

        10W = 80

           W = 8 -- equation 3

   

   Plug the value of W from equation 3 into equation 1:

    L = 4W = 4 * 8 = 32

Therefore the length is 32 and the width is 8.

Hope that helps!

     

   

You might be interested in
Add 17/99 + 27/99 + 15/99
Helen [10]

Answer:

59/99

Step-by-step explanation:

Since the denominator is the same you add the numerator values for each fraction  27+17+15 = 59

8 0
3 years ago
Read 2 more answers
Water flowing at the rate of 15km/hr through a pipe of diameter 14cm into a cuboidal pond which is 50m long and 44m wide. In whi
katen-ka-za [31]
Hello,

We must calculate the volume of water in one hour.

V=15000*PI*0.07²=230,9070600... m^3/h.

Volume of the pond=50*44*.21=462 m^3

Time=462 m^3/ 230.907... m^3/h=2,0008... h≈2 h


5 0
4 years ago
A, B & C share the rent in a ratio of 4:3:2. The rent is £216. How much does A pay?
zysi [14]
If the ratio is 4:3:2 each part of that ratio has a value of:

216/(4+3+2)

216/9=24

Since A pays four parts, 

A pays 4*24=£96
5 0
3 years ago
Read 2 more answers
PLZ HELP 30 POINTS 1 QUESTION WILL MARK AS BRAINLIEST IF CORRECT
horrorfan [7]
The answer would be (B) y = 2x - 2 because when you substitute all of the points in terms of y and x everything fits accordingly. For example, if plugged in the coordinates for the first point you would get: y = 2(1.5) - 2. When you solve for y, you get 1 which is in fact the y-coordinate. Hope this helps!
7 0
3 years ago
Please help..:
Elodia [21]

600-225 = 375 students didn't attended the game.

So, the percentage of the people who didn't attented will be (375/600) × 100 = 62.5%

4 0
3 years ago
Other questions:
  • this isn’t a question, but i’m just saying if you need help with an equation you can also use photomath, your welcome;)
    7·2 answers
  • Angela earns x dollars an hour. On Friday, she worked 6 hours. On Saturday, she worked 8 hours. Which expression shows how much
    14·1 answer
  • Find the amplitude of the function.<br> y=1/5 sin 4x
    5·1 answer
  • Combine the like terms -6m + 4m. Simplify your answer
    7·2 answers
  • What is the formula for the volume of a cone?
    13·2 answers
  • 4. Given the diagram below what is the length of RS or the distance across a body of water?
    14·1 answer
  • Use the properities to find the sum or product of 93+[68+7]
    14·1 answer
  • Frankie charges 30$ per week for tutoring plus a 10$ sign up fee. Complete the table to show the relationship, then graph the ta
    8·1 answer
  • HELP ASAP PLS 10 POINTS ​
    11·2 answers
  • Could someone quickly sum up how to calculate probability? I’m taking a course on it and don’t understand.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!