myiababy41 myiababy41
  • 31-10-2019
  • Mathematics
contestada

A rectangle's length is 3 cm more than twice its width. If the perimeter is 48 cm, what is the
rectangle's area?

Respuesta :

Flamecaster
Flamecaster Flamecaster
  • 31-10-2019

Answer:

119 square centimeters.

Step-by-step explanation:

Write the problem as an equation.

2(2x+3)+2x=48

Where x is width of the rectangle. 2x+3 represents the length.

4x+6+2x=48

6x+6=48

6x=42

x=7

The width is 7 cm.   Then, find the length.

(2x+3)     Given

(2)(7)+3   Plug in 7 for x

14+3

17

Then, find the area, width*length

17*7=119

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