SOLUTION: Robert is on a diet and can have 500 calories for lunch. A 3-ounce hamburger on whole wheat bread has 315 calories, and 12 fluid ounces of soda has 145 calories. How many French fr

Algebra ->  Graphs -> SOLUTION: Robert is on a diet and can have 500 calories for lunch. A 3-ounce hamburger on whole wheat bread has 315 calories, and 12 fluid ounces of soda has 145 calories. How many French fr      Log On


   

Question 142937: Robert is on a diet and can have 500 calories for lunch. A 3-ounce hamburger on whole wheat bread has 315 calories, and 12 fluid ounces of soda has 145 calories. How many French fries can he eat if there are 10 calories in one French fry?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Robert is on a diet and can have 500 calories for lunch. A 3-ounce hamburger on whole wheat bread has 315 calories, and 12 fluid ounces of soda has 145 calories. How many French fries can he eat if there are 10 calories in one French fry?
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EQUATION:
Let x be the number of fries he can eat.
EQUATION:
x = [500-315-145]/10
x = [40/10] = 4
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Cheers,
Stan H.