Question 1055333
If Sarah was saving for a computer that cost $1200 the first month she saved$20 and doubled the amount each month after that how many months will it take her to save the money?
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1st mth:: 20
2nd mth:: 40 
3rd mth:: 40
etc
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20 + 40x = 1200
40x = 1180
x = 29.5
Ans:: 30 mths when rounded up
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Cheers,
Stan H.
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