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madelyn was out at a restaurant for dinner when the bill came. her dinner came to $30. after adding in a tip, before tax, she paid $38.40. find the percent tip.

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To find the percentage tip, we can start by subtracting the cost of the dinner from the total amount Madelyn paid, which includes the tip.

Total amount paid (including tip) - Cost of dinner = Tip amount

$38.40 - $30.00 = $8.40 (Tip amount)

Now, we can calculate the percentage tip by dividing the tip amount by the cost of the dinner and multiplying by 100.

(Tip amount / Cost of dinner) x 100

($8.40 / $30.00) x 100 = 0.28 x 100 = 28%

Therefore, the percentage tip Madelyn left at the restaurant is 28%.
User PriceyUK
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