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10-04-2017
Mathematics

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The ratio of Jenna's money to Brandy's money is 5:7. After Jenna spent $90, the ratio became 3:7. How much money did Brandy have?

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10-04-2017

jenna spent, so brandy's money is constant

5:7 to 3:7
7=7 so
5 to 3 is 90 dollars
5-3=2
2units=90
divid eby 2
1unit=45

brandy=7 units
1unit=45
times 7 both sides
7unit=315

brandy has and had $315

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