Adele M.
asked 01/08/21
Kevin and Randy have a jar containing 56 coins, all of which are either quarters or nickels. The total value of the coins in the jar is $10.20. How many of each type of coins do they have?
Raymond B.
answered 01/09/21
Math, microeconomics or criminal justice
56 = N+Q
N=56-Q
5N+25Q = 1020
5(56-Q) +25Q = 1020
280-5Q + 25Q = 1020
20Q = 1020-280 = 740
Q = 740/20 = 37 quarters
N=56-37 = 19 nickels
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