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Mama L [17]
3 years ago
11

Keisha's penny bank is 2/3 full. After she removes 120 pennies, it is 1/2 full.How many pennies does Keisha's bank hold?

Mathematics
1 answer:
dlinn [17]3 years ago
8 0

let \:  \\ x = the \: number \: of \: pennies \: the \\  \: bank \: holds\\ 120 +   \frac{1}{2}x =  \frac{2}{3}x \\ 120 =  \frac{2}{3}x -  \frac{1}{2}x \\ 120 =  \frac{4}{6}x -  \frac{3}{6}x \\  \frac{1}{6}x = 120 \: so \\  \: x = 120 \times 6 = 720
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