Tim earns $120 plus $30 for each lawn he mows. Write an inequality to represent haw many lawns he needs to mow to make $310
120 + 30x >= 310 subtract 120 from both sides
30x >= 190 divide both sides by 30
x >= 6 + 1/3 yards
So......6 yards won't be quite enough.......he needs to mow 7
As cphil was explaining the innequality is:
If lawns = x
x>=7
