An artificial lake is the shape of a rectangle and has an area of 9/20 square miles the width of the lake is 1/5 the length of the lake what are the dimensions of the lake PLEASE PLEASE PLEASE PLEASE PLEASE HELP



Answer :

Step 1
assume width is X
then length equals 5 X
the area of the lake 9/20 = 5X^2
So X^2 = 9/100
X = 3/10
so the width is 3/10 mile
length 3/10 * 5 = 1 1/2 mile