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.

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.
------------
L = 2.5J
L = J + 15
-----
Sub for L in the 2nd eqn
2.5J = J + 15
1.5J = 15
J = 10
----
L = 25

RELATED QUESTIONS
Jessica has two children: Sophie and Lucas. Jessica is six times as old as Sophie, who is (answered by ankor@dixie-net.com,iammewearethree)

Jenny and Ann are sisters. Jenny is three times older than Ann. In four years, Jenny will (answered by ewatrrr)

Lucas is twice as old as Emily . The product of their age is 50. Use an equation to... (answered by ikleyn)

Jenny is twice as old as Jimmy. Jesse is 10 years older then jimmy. If the sum of their... (answered by lwsshak3,DrBeeee)

If antonio is 15 years old, and jenny is 22 years old, how much older is jenny than... (answered by Kalmetam)

Dear Teacher, Please help me with this word problem. I am getting confused. 1) Find (answered by josgarithmetic)

Shania is 4 times as old as Jenny. Jenny is 3 years older than Enrique. If their total... (answered by josmiceli,jim_thompson5910,MathTherapy)

Lucas is three times as old as Renelle. Jay is 4 years older than Lucas.The sum of their... (answered by josgarithmetic)

Dear Teacher, I am so sorry to bother, but I really need some help with my assignment. (answered by ankor@dixie-net.com,greenestamps)