The perimeter of a rectangle sandpit is 40 meters. The length of the sandpit is 1 meter less than twice it’s width. What are the dimensions of this sandpit

The width is 7 meters and the length is 13 meters

Step-by-step explanation:

The perimeter of a  rectangle sandpit is 40 meters.

Let the width be w units, then the length which is 1 meter less than twice it’s width becomes:

The perimeter of a rectangle is given by:

We substitute P=40 and the length in term of w to get:

We simplify to get:

Divide through by 2 to get:

Hence

answer: d. $20

step-by-step explanation:

just took the test

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²