Answered

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jennica has a total of $3.40 in nickels and quarters if she has twenty coins,how many are nickels and how many are quarters ?

Sagot :

total money = $3.40

1 quarter = $0.25 = q

1 nickels = $0.05 = n

n + q = 20

0.25q + 0.05n = 3.40

Solve for n

n = 20 - q

0.25q + 0.05(20 - q) = 3-40

0.25q + 1 - 0.05q = 3.40

0.30q + 1 = 3.40

0.30q = 3.40 - 1

0.30q = 2.40

q = 2.40/0.30

q =

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