SOLUTION: Lucas is two and a half times as old as Jenny. If Lucas is 15 years older, then how old is Jenny? I got the equation: 2.5x=x+15 but now I'm stuck.
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Question 830988: Lucas is two and a half times as old as Jenny. If Lucas is 15 years older, then how old is Jenny? I got the equation: 2.5x=x+15 but now I'm stuck. Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! Lucas is two and a half times as old as Jenny. If Lucas is 15 years older, then how old is Jenny? I got the equation: 2.5x=x+15 but now I'm stuck.
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L = 2.5J
L = J + 15
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Sub for L in the 2nd eqn
2.5J = J + 15
1.5J = 15
J = 10
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L = 25
