SOLUTION: The ratio of Julio's money to Marcus's money was 7:10. After Julio bought 4 books at $4.50 each the ratio of Julio's money to Marcus's money was 1:4. Use a bar graph to find how mu

Question 361189: The ratio of Julio's money to Marcus's money was 7:10. After Julio bought 4 books at $4.50 each the ratio of Julio's money to Marcus's money was 1:4. Use a bar graph to find how much money Julioo and Marcus have left.

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The ratio of Julio's money to Marcus's money was 7:10. After Julio bought 4 books at $4.50 each the ratio of Julio's money to Marcus's money was 1:4. Use a bar graph to find how much money Julioo and Marcus have left.
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Original amounts of money
Julio has 7x dollars
Marcus has 10x dollars
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Julio spent 4*4.50 = 18 dollars on books.
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Equation:
(7x-18)/10x = 1/4
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28x - 72 = 10x
18x = 72
x = 4
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Julio has 7x-18 = 28-18 = 10 dollars
Marcus has 10x = 40 dollars
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Comment: Bar graphs cannot be displayed on this site.
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Cheers,
Stan H.

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