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Buffalo Nickel Roll 40 Coins All Readable Dates 1920s and 1930s
US $19.99
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LOT OF FIFTY BUFFALO NICKELS ALL COINS CAN BE DATED
US $19.00
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Jefferson Nickel Set 154 Coins in All AU BU
US $61.00
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Marco has 150 coins, all nickels and dimes. he has 12 more dimes than nickels. How many nickels and dimes does?
HE HAVE?
(i have to translate to a system of equations and solve)
HELPP
N+D=150
D=N+12
substitute into the 1st equation:
N+N+12 =150
2N+12 = 150
2N = 138
N = 69
D = 69+12 = 81
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Buffalo Nickel Roll 40 Coins All Readable Dates 1920s and 1930s US $19.99
|
LOT OF FIFTY BUFFALO NICKELS ALL COINS CAN BE DATED US $19.00
|
Jefferson Nickel Set 154 Coins in All AU BU US $61.00
|
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