Let x = the number of shirts sold
Let y = the number of pairs of flip flops sold
Because 41 items were sold, therefore
x + y = 41 (1)
Shirts sell for $10 each, and a pair of flip flops for $5 per pair (or $2.50 each). Total sales is $325.
Therefore.
10x + 5y = 325
or, divide by 5 to obtain
2x + y = 65 (2)
Subtract (1) from (2).
2x + y - (x + y) = 65 - 41
x = 24
From (1), obtain
y = 41 - x = 41 - 24 = 17
Answer:
Jack sold 24 shirts and 17 pairs (or 34) of flip flops.
