David currently has a square garden. He wants to redesign his garden and make
it into a rectangle with a length that is 3 feet shorter than twice its width. He
decides that the perimeter should be 60 feet.

Determine the dimensions, in feet, of his new garden.

Width=11 feet

Length = 19 feet

Step-by-step explanation:

Hi, to answer this question we have to write a system of equations :

Where:

L= length

W= width

Replacing the value of L in the perimeter equation:

2(2W-3) +2W =60

4W -6+2W=60

4W+2W=60+6

6W=66

W=66/6

W=11

Replacing the value of W in the length equation:

L= 2(11)-3

L=22-3

L=19

$8

step-by-step explanation:

it is pretty much backwards.

you take the 4x2 multiply that, and that is = $8

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.