math
posted by luzagrace .
the width of the field is 3/4 the length and the radius of the center circle is 1/10 the width.what are the dimensions of the soccer field,given the perimeter is 420m?

W = 3/4 L
2W + 2L = 420
Substitute 3/4L for W in second equation and solve for L. Insert that value into the first equation and solve for W. Check by inserting both values into the second equation.