mv603177
21.01.2020 •
Mathematics
Amy has 20 coins in her bank. the coins are all dimes and quarters. the total amount of money in her bank is $4.25 how many of each coin does she have?
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Ответ:
Ответ:
2x-7=23-3x
or, 2x+3x=23+7
or, 5x = 30
or, x = 30/5
or, x = 6
The answer is 6