Rosie washes clothes for two families the first family pays her $500 more per month than the second. Her total earning per month is $3200. How much does she earn from each families?

Family 1: $1.850 Family 2: $1.350

Step-by-step explanation:

We know that the total monthly payment is 3200, so if we call Pa (family A's payment) and Pb (Family B's payment) the payments:

Pa+Pb=3200 also, Pa = Pb+500

So if we replace Pa in the first ecuation:

Pb+500+Pb=3200 2Pb = 3200-500 Pb=2700/2 = $1.350

then Pa+Pb=3200 = > Pa = 3200-1350 = $1.850

Good Luck!