SOLUTION: Juan has 16 coins, all nickels and dimes. This collection of coins is worth $1.15. How many nickels and dimes are there?
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Question 178042: Juan has 16 coins, all nickels and dimes. This collection of coins is worth $1.15. How many nickels and dimes are there?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the number of nickels
Let = the number of dimes
given:
(1)
(2)
and, from (1)
Juan has 9 nickels and 7 dimes
check:
(2)
OK
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