SOLUTION: Please help me to sove this aquation.I am in 8th grade and my teacher never expleined the class of how to do this befoe giving the homework; A dinner cost D dollar and gave 20% tip

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Question 356871: Please help me to sove this aquation.I am in 8th grade and my teacher never expleined the class of how to do this befoe giving the homework; A dinner cost D dollar and gave 20% tip.
What is the amount of the tip?
What is the total amount of the meal?

Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!

Hi,
A dinner costing D dollars
A 20% tip would cost .20*D
The total amount spent for eating out would then be:
D + tip = D + .20D
D + .20D may be written as (1 +.20)D
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