Apples cost $0.60 each and pears cost $0.80 each. If a total of 130 apples and pears cost $88, how many pears were there?
.6 a + .8 p = 88 a = 130 - p so .6 (130-p) + .8 p = 88 78 - .6 p + .8 p = 88 .2 p = 10 p = 100/2 = 50
+176 
