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Sandra has some nickels, dimes, and quarters which total $2.50. She has the same

number of nickels as quarters; however, she has twice the number of dimes as nickels.
How many of each type of coin does she have?

1 Answer

7 votes

Answer:

5 nickels

10 dimes

5 quarters

Explanation:

n = number of nickels

d = number of dimes

q = number of quarters

q = n

d = 2n

0.05n + 0.10d + 0.25q = 2.50

substitute

0.05n + 0.10(2n) + 0.25(n) = 2.50

0.05n + 0.20d + 0.25n = 2.50

0.50n = 2.50

n = 5

d = 10

q = 5

User Valentin Borisov
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