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Ryan has some nickels and dimes. altogether, he has 34 coins that total $2.60. write and solve a system of equations to determine how many of each coin he has.

Ryan has some nickels and dimes. altogether, he has 34 coins that total $2.60. write and solve a system of equations to determine how many of each coin he has.
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Ryan has some nickels and dimes. altogether, he has 34 coins that total $2.60. write and solve a system of equations to determine how many of each coin he has.

User THESorcerer
by
7.4k points

1 Answer

1 vote
n+d=34
.05n+.10d=2.60

Solve by substitution
n=34-d
.05(34-d)+.10d=2.60
1.7-.05d+.10d=2.60
.05d=.90
d=18 dimes
18+n=34
n=16 nickles

User ZhenYu Wang
by
7.8k points
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