The difference between the length and width of a rectangle is 7 cm. What is the area of the rectangle if it is perimeter is 50 cm .

Question

Please send me this. I am stuck and I need work with it. 

Answer 1

l - w = 7

2l + 2w = 50

 

First, solve the 1st equation for l

 

l = w + 7

 

Substitute!

 

2(w + 7) + 2w = 50

 

Solve for w, then plug your answer into the 1st equation to solve for l. Multiply the two together for your area.