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Salsk061 [2.6K]

4 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.

1 answer:

Crank4 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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<h3>Given</h3>

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$a_2=-2\quad\text{and}\quad a_5=16$

<h3>Find</h3>

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