Question 808297: Ava has 52 coins. The value of her coins (only dimes and nickels) is $4.15. Find the number of nickels and the number of dimes. Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = number of nickels
Let = number of dimes
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(1) ( in cents )
(2)
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Multiply both sides of (2) by and
subtract (2) from (1)
(1)
(2)
and, since
(2)
(2)
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There are 21 nickels and 31 dimes
check:
(1)
(1)
(1)
OK
