Tammy M.
asked • 11/24/20Sam has nickels, dimes and quarters in her wallet. In total she has 26 coins with a value of $2.70. If she has six more dimes that all the nickels and quarters combined, how many of each type of coin does she have
Raymond B. answered • 12/27/22
Math, microeconomics or criminal justice
n+d+q=26
5n+10d+25q=270
n+2d+5q=54
d=6+n+q
n+12+2n+2q+5q=54
3n+7q=54-12=42
n+6+n+q+q=26
2n+2q=20
n+q=10
3n+3q=30
4q=12
q=3 quarters
n=7 nickels
d=16 dimes
5(7)+10(16)+25(3)=270
16=6+7+3
7+16+3=26
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