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mrstaker1518
05.09.2019 •
Mathematics
You have $4.10 in nickels, dimes, and quarters. if you have twice as many dimes as quarters, and five more nickels than dimes, how many coins of each type do you have?
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Ответ:
For this case, the first thing to do is define variables.
We have then:
x: number of nickels y: number of dimes z: number of quartersWe write now the system of equations:
Then rewriting the equations we have:
Then, substituting values we have:
Finally:
19 nickels
14 dimes
7 quarters
Ответ:
The product of a constant and a variables