3 years ago

Lena's penny bank is 1/2 full. After she removes 200 pennies, it is 3/10 full. How many pennies can Lena's bank hold?

1 answer:

5 0

(1/2)*x - (3/10)*x = 200
(5/10)*x - (3/10)*x = 200
(2/10)*x = 200
(1/5)*x = 200
x = 200*(5/1)
x = 200*5
x = 1,000 pennies

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