Question 487951: A jar of coins has 48 coins worth $4.50 in it. All the coins are nickels and dimes. Determine how many nickels and dimes are in the jar. Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = number of nickels
Let = number of dimes
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given:
(1)
(2)
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Multiply both sides of (1) by
and subtract (1) from (2)
(2)
(1)
and, since
(1)
(1)
(1)
(1)
There are 6 nickels and 42 dimes in the jar
check:
(2)
(2)
(2)
(2)
OK
