Mathematics, 30.07.2021 03:10 johnLavender8262
Jennifer has $400 more than Brian has. If she were to give Brian 20% of her money, then Brian would have 2 3 of the amount of money that Jennifer would then have. How much money does Brian currently have (before exchanging money)
Answers: 1
=[400+x](0.2)+x\\\\\Rightarrow \dfrac{2}{3}\times 0.8\times (400+x)=80+0.2x+x\\\\\Rightarrow 213.334+0.533x=80+1.2x\\\Rightarrow 133.334=0.66x\\\Rightarrow x=\$202.02](/tpl/images/1401/9723/a81fb.png)
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Jennifer has $400 more than Brian has. If she were to give Brian 20% of her money, then Brian would...
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