algebra
posted by john .
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?

algebra 
PsyDAG
Let O and A stand for pounds of fruit.
O + A = 8
A = 8  O
.5O + A = 5
Substitute 8O 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.
Respond to this Question
Similar Questions

math
A fruit seller has an equal number of apples and oranges. He sold 109 oranges and 45 apples.The number of apples left is 5 times the number of oranges left. What is the total number of fruit he had first? 
AIG MATH
A fruit seller has an equal number of apples and oranges.He sold 109 oranges and 45 apples.The number of apples left is 5 times the number of oranges left.What is the total number of fruit he had at first? 
math
You are also making a fruit salad. You have already selected apples, oranges, kiwi, strawberries, and blueberries which total $17.28, you still need to purchase bananas. The bananas cost $0.44 per pound. You choose three bunches that … 
Math
Miss Sue made an error putting in the question,can you please help me again. You are also making a fruit salad. You have already selected apples, oranges, kiwi, strawberries, and blueberries which total $17.28, you still need to purchase … 
Math  Fractions
2/3 of the pieces of Fruit in Lurene's basket are oranges. Of the fruit that are not oranges, 2/3 are apples, IF 2/2 of the apples are green and there are 6 pieces of fruit that are neither apples or oranges, how many more oranges … 
math  word problem
2/3 of the pieces of Fruit in Lurene's basket are oranges. Of the fruit that are not oranges, 2/3 are apples, IF 2/2 of the apples are green and there are 6 pieces of fruit that are neither apples or oranges, how many more oranges … 
math
A fruit stand has 28 apples, 20 oranges, and 12 pears. What is the ratio of apples to the total pieces of fruit? 
Math
You have $30 to spend on picking 25 pounds of two different types of fruit at a farm. The apples cost $1.40 per pound the blueberries cost $.90 per pound and the cherries cost $1.10 per pound. You want prices many pounds of apples … 
Math
Lisa went to the store and bought 100 pounds of fruit for $100.00. The peaches were $10.00 a pound, the melons were $3.50 per pound, and the apples were $.50 per pound. How many pounds of each did she buy 
MaTh
i'm dumb help. The ratio of apples to oranges in a fruit basket is 3/4. The total number of oranges is 8. How many apples are in the fruit basket?