Asked by leah

Ava has $1.85 in quarters and dimes. She has 8 coins altogether. How many coins of each kind does she have?
Answered by R_scott
25q + 10d = 185

q + d = 8 ... 10q + 10d = 80

subtracting equations (to eliminate d) ... 15q = 105

solve for q , then substitute back to find d