Tension wants to build a soccer field for his team. The area of the field should be 125 square feet. The width is 1/5 of the length. What are the dimensions of the field?

5W = L

LW = 125

5W^2 = 125

Substitute 5W for L in the second equation and solve for W. Insert that value into the first equation to solve for L. Check by putting both values into the second equation.