SOLUTION: Find the dimensions of a rectangle with a perimeter of 90 cm if the length is 5 cm less than four times the width. width is 1 cm length is 2 cm.

Question 280884: Find the dimensions of a rectangle with a perimeter of 90 cm if the length is 5 cm less than four times the width. width is 1 cm
length is 2 cm.

Answer by unlockmath(1688) (Show Source): You can put this solution on YOUR website!
Hello,
Let's set up the width being x and the length being 4x-5. Now we can set up the equation to be: (note: It's a bit confusing when the problem states length is 2 cm and width is 1 cm. What is that about?)
2x+2(4x-5)=90 Combine like terms to get:
10x-10=90 Add 10 to both sides to get:
10x=100 Divide both sides by 10 to get:
x=10cm would be the width and the length is:
35cm
RJ
www.math-unlock.com
RELATED QUESTIONS
Find the dimensions of a rectangle with a perimeter of 90 cm if the length is 5 cm less... (answered by checkley77)

Find the dimensions of a rectangle with a perimeter of 112 cm if the length is 4 cm less... (answered by PRMath)

Find the dimensions of a rectangle with a perimeter of 34 cm if the length is 4 cm less... (answered by checkley77)

Find the dimensions of a rectangle with a perimeter of 42 cm if the length is 7 cm less... (answered by solver91311)

The length of a rectangle is 5 cm less than three times its width. If the perimeter is 70 (answered by Maths68)

The perimeter of a rectangle is 90 cm. The length is 15 cm more than four times the... (answered by algebrahouse.com)

The length of rectangle is 3 cm less than four times its width. If the perimeter is 34... (answered by solver91311)

The perimeter of a rectangle is 74 cm. The length of the rectangle is 5 cm less than... (answered by gwendolyn)

The length of a rectangle is 2 cm more than four times the width. If the perimeter of the (answered by user_dude2008)