Question 1048618: A piggy bank contains 18 coins, all quarters and dimes. Find the number of each types of coins if the value of the coins is $2.40 Found 2 solutions by josmiceli, solver91311:Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = number of quarters
Let = number of dimes
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(1)
(2) ( in cents )
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(2)
Multiply both sides of (1) by
and subtract (1) from (2)
(2)
(1)
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and
(1)
(1)
(1)
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There are 4 quarters and 14 dimes
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check:
(2)
(2)
(2)
(2)
OK
