Question

Jessica has 28 coins. One fourth of them are quarters. Two thirds of the rest of the coins are dimes. The remaining ones are nickels. How many quarters, dimes, and nickels does he have? How much money does he have in coins? If he wants to buy 2 packs of cards, with each pack $1.35, how much money would he have left?

Answer 1

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Answer:

• 7 quarters, 14 dimes, 7 nickels total $3.50
• $0.80 will remain

Explanation:

a) 1/4 of 28 = 28/4 = 7 coins are quarters.

2/3 of (28 -7) = (2/3)(21) = 14 coins are dimes

The remaining 28 -7 -14 = 7 coins are nickels

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b) The amount of money in coins is ...

7×$0.25 +14×$0.10 +7×$0.05 = $3.50 . . . in coins

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c) 2 packs of cards at $1.35 each will cost 2×$1.35 = $2.70. After the purchase, the remaining money would be ...

$3.50 -2.70 = $0.80 . . . remaining