Question

The area of a mattress is 56 square feet. The width of the bed is x+4 and the length is 8. Solve for the value of
x by creating an equation using the area formula, then find the width of the mattress.

Answer 1

The width of the mattress is 7.

Give that

• The area of the mattress is 56 square feet.
• The length is 8.
• And, the width of the bed is x + 4.

Now as we know that

Area of the rectangle = Length × width

56 square feet = 8 × (x + 4)

56 = 8x + 32

56 - 32 = 8x

x = 3

So, the width is

= 3 + 4

= 7

Therefore we can conclude that the the width of the mattress is 7.

Learn more about the area here: brainly.com/question/16418397