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Kat has 19 coins, all quarters and dimes, that are worth a total of $4. The system of equations that can be used to the number of quarters,q, and the number of dimes,d, she has …

Kat has 19 coins, all quarters and dimes, that are worth a total of $4. The system of equations that can be used to the number of quarters,q, and the number of dimes,d, she has …
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Kat has 19 coins, all quarters and dimes, that are worth a total of $4. The system of equations that can be used to the number of quarters,q, and the number of dimes,d, she has shown

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User Aakash Basu
by
8.2k points

2 Answers

4 votes

Answer:

14

Explanation:

answered
User Havogt
by
7.2k points
5 votes
q + d=19 0.25q + 0.1d=4
(d) -0.1(q + d=19) 0.25q + 0.1d=4 Opposites cancel -0.1q -0.1 d=1.9 0.25q + 0.1d=4
answered
User Aseure
by
9.0k points
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