Just add up them all to get the total, take the average, and then get the difference from the first bill.
(110.65 + 4*174.62)/5 - 110.65 = 51.176
So, if she adds $51.18 to the first bill, they will all be
110.65 + 51.18 = 161.83
check:
161.83 * 5 = 809.15
110.65 + 4*174.62 = 809.13
So, she'll end up paying an extra 2 cents after roundoff error.
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oobleck
today at 2:54pm
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This was originally posted on another student's thread.
Jessica has 5 bills coming up. If the first bill is 110.65 and the following four are 174.62 how much could she pay extra on the first one to make them all equal?
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posted by ashley
today at 2:34pm
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