SOLUTION: Bob has 60 coins consisting of quarters and dimes. The coins combined value is $9.45. Find out how many quarters and how many dimes. How do i set this up?
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Question 409124: Bob has 60 coins consisting of quarters and dimes. The coins combined value is $9.45. Find out how many quarters and how many dimes. How do i set this up? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = number of quarters
Let = number of dimes
given:
(1) (in cents)
(2)
Multiply both sides of (2) by
and subtract from (1)
(1)
(2)
and, since
(2)
There are 37 dimes and 23 quarters
check answer:
(1)
(1)
OK
