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Estimate a 15% tip on a dinner bill of $58.12 by first rounding the bill amount to the nearest ten dollars.

Estimate a 15% tip on a dinner bill of $58.12 by first rounding the bill amount to-example-1

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Answer: an estimated 15% tip on a dinner bill of $58.12 would be $8.72.

Explanation:

First, we can calculate 10% of $58.12 by moving the decimal point one place to the left, which gives us $5.81.

Then, we can calculate half of 10%, which is 5%, by dividing $5.81 by 2, giving us $2.91.

Finally, we add 10% and 5% to get the estimated tip amount:

$5.81 + $2.91 = $8.72

Therefore, an estimated 15% tip on a dinner bill of $58.12 would be $8.72.

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