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Salsk061 [2.6K]
3 years ago
11

Mary and her brother John collect foreign coins. Mary has three times the number of coins that John has. Together they have 140

foreign coins.
Mathematics
1 answer:
Crank3 years ago
6 0
Mary has 3x coins, John has x coins,
x+3x=140.
4x=140
x=140/4
x=35

John has 35 coins and Mary has 105 coins.
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