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OpenStudy (anonymous):
Purvi and her friends tipped their waiter a total of $10 for dinners that cost $9, $8, $11 and $12 each. Use a percent proportion to solve for the percent tip they left the waiter. Please show work.
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OpenStudy (anonymous):
The answer will be \[ \frac {10}{9+8+11+12} \times 100\% \]
OpenStudy (anonymous):
Basically \(\frac{tip}{total}=tip\%\)
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