Question

Mo's farm stand sold a total of 165 pounds of apples and peaches. she sold apples for $1.75 per pound and peaches for $2.50 per pound. if she made $337.50, howamy pounds of peaches did she sell?

Answer 1

Let x and y be the number of pounds of apples and peaches, respectively. With this representation, two equations are generated. 
    (1)              x + y = 165
    (2)             1.75x + 2.50y = 337.50

Simultaneously solving for the values of x and y gives an answer of x = 100 and y = 65. Thus, Mo sold 65 pounds of peaches.