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Jerry decided to keep track of what he spends his money on. He spends $120 on clothing, $70 on food and some amount for entertainment. If the amount spent on entertainment to the total amount was 3 to 7. How much did he spend on entertainment?

 Jul 30, 2021
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t = 120 + 70 + e

e = 3 out of (3+7)   t  = 3/10 t

 

t = 120 + 70 + 3/10 t

7/10 t = 190

t = 271.43

 

e = 3/10 t = 81.43 dollars

 Jul 30, 2021

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