Question

A rectangular field is 4 times as long as it is wide. If the length is decreased by 10 feet and the width is increased by 2
feet, the perimeter will be 80 feet. Find the dimensions of the original field.
The original dimensions are
feet long by
feet wide.

Answer 1

Answer: a=32 feet

              b=8 feet

Step-by-step explanation:          

b=b

a=4b

------------                                      

b1=b+2

a1=(b+2)*4-10

2(b+2+4b+8-10)=80

5b=40

b=8

a=32

Answer 2

Answer: 42 and 6

Step-by-step explanation: