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Isaiah has $3.45 in dimes and quarters. If he has a total of 24 coins, how many dimes does he have? Write and solve a system of equations.

12

17

18

10

User Rina
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1 Answer

1 vote
Let x and y be the number of dimes and quarters that Isaiah has. The sum of these variables should be 24 and the total value be $3.45. The equations that would best represent the situation are,
x + y = 24
0.1x + 0.25y = 3.45
The values of x and y are 17 and 7, respectively. Thus, the answer is the second choice.
User Bill Campbell
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