SOLUTION: Arthur left a 20% tip, or $7.50, for his meal. What was the cost of the meal AFTER the tip was added? Give your answer with proper unit notation. I am getting $9 is that rig

Question 1014375: Arthur left a 20% tip, or $7.50, for his meal. What was the cost of the meal AFTER the tip was added? Give your answer with proper unit notation.

I am getting $9 is that right?
Found 4 solutions by rothauserc, FrankM, addingup, josmiceli:
Answer by rothauserc(4718)   (Show Source): You can put this solution on YOUR website!
let x be the cost of his meal, then
.20 * x = 7.50
x = 7.50 / .20
x = 37.50, therefore
the cost of his meal is $37.50
now we want 37.50 + 7.50 = $45.00
the cost of his meal plus tip is $45.00

Answer by FrankM(1040)   (Show Source): You can put this solution on YOUR website!
"Arthur left a 20% tip, or $7.50, for his meal."
As I read this, the 20% is $7.50 tip.
.2 X = $7.50
X = $37.50
Answer by addingup(3677)   (Show Source): You can put this solution on YOUR website!
He left 20% equivalent to 7.50
.20x= 7.50
x= 7.50/.20= 37.50 was the cost of the meal before the tip was added.
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37.50+7.50= $45.00 was the total cost of the meal AFTER the tip was added.
J
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
Let = the price of the meal BEFORE the tip was added

----------------
The cost of the meal AFTER the tip is added is:

$45
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The $9 you got is
This is taking 20% of the meal price PLUS the tip
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