SOLUTION: Diane has $1.20 in dimes and nickels. She has a total of 15 coins. How many of each kind does she have?
Smallest Value
Highest Value
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Question 747034: Diane has $1.20 in dimes and nickels. She has a total of 15 coins. How many of each kind does she have?
Smallest Value
Highest Value
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = number of nickels
Let = number of dimes
-----------
(1)
(2) ( in cents )
---------------------
Multiply both sides 0f (1) by
and subtract (2) from (1)
(1)
(2)
-----------
and, since
(1)
(1)
She has 6 nickels and 9 dimes
check:
(2)
(2)
(2)
(2)
OK
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