SOLUTION: kelly saves all of her dimes and nickels in a jar on her desk. when she counts he money, she finds that she has 107 coins worth a total of $8.65. how many dimes and how many nickel
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Question 665485: kelly saves all of her dimes and nickels in a jar on her desk. when she counts he money, she finds that she has 107 coins worth a total of $8.65. how many dimes and how many nickels does she have? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = number of nickels she has
Let = number of dimes she has
given:
(1)
(2) ( in cents )
---------------------
Multiply both sides of (1) by
and subtract (1) from (2)
(2)
(1)
and, since
(1)
(1)
(1)
She has 41 nickels and 66 dimes
check:
(2)
(2)
(2)
OK
