2 years ago

1. Emma has 52 coins în dimes and quarters which are worth $6. 25. How many of each coin does she have?

English

1 answer:

Delvig [45]2 years ago

5 0

Answer: 7 Q and 45 D

Explanation:

Equations:

Quantity: D + Q = 52 coins

Value:::10D+25Q = 625 cents

Multiply thru Quantity by 10 to get:

10D + 10Q = 520

Subtract that from Value and solve for Q:

15Q = 105

Q = 7 (# of quarters)

Since D+Q = 52, D = 45 (# of dimes)

add them and you get 52.

7 Quarters and 45 Dimes, that 52 coins in total. :]

Hope this helps !!

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