Let O and A stand for pounds of fruit.
O + A = 8
A = 8 - O
.5O + A = 5
Substitute 8-O for A in third equation and solve for O. Insert that value into the first equation and solve for A. Check by inserting both values into the third equation.
mary went to the store for some fruit. The apples were $1.00 per pound and the oranges were $0.50 per poumd. She spent $5,00 all together and took home a total of 8 pond of fruit. How many ponds of apples and oranges did she buy?
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