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sertanlavr [38]
3 years ago
11

A cash register contains only five dollar and ten dollar bills. It contains twice as many five's as ten's and the total amount o

f money in the cash register is 640 dollars. How many ten's are in the cash register?
Mathematics
1 answer:
nalin [4]3 years ago
5 0

Answer:

Let the number of five's = 2x = 2x × 5 = 10x

Then the number of ten's = x = x × 10 = 10x

10x + 10x = 640

20x = 640

x = 32

There are 32 ten dollar bills.

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