SOLUTION: The ratio from Sam's age to Jim's age is 7:10. Twelve years ago Jim was twice as old as Sam. What will be the ratio of Sam's age to Jim's age 9 years from now?

Question 1032300: The ratio from Sam's age to Jim's age is 7:10.
Twelve years ago Jim was twice as old as Sam.
What will be the ratio of Sam's age to Jim's age 9 years from now?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
The ratio from Sam's age to Jim's age is 7:10.
+
10S = 7J
S = J
S = .7J
Twelve years ago Jim was twice as old as Sam.
J - 12 = 2(S - 12)
J - 12 = 2S - 24
J = 2S - 24 + 12
J = 2S - 12
Replace S with .7J
J = 2(.7J) - 12
J = 1.4J - 12
12 = 1.4J - J
12 = .4J
J = 12/.4
J = 30 yrs is Jim's present age
then
S = .7(30)
S = 21 yrs is Sam's present age
:
What will be the ratio of Sam's age to Jim's age 9 years from now?
= = ; 10:13 is ratio in 9 yrs
RELATED QUESTIONS
Three years ago Sam was twice as old as Jim. In two years, Jim will be 7 years old. How (answered by richwmiller)

4 years ago Judy was twice as old as Sam. 4 years from now Sam will be 3/4 of Judy's... (answered by ankor@dixie-net.com)

Four years ago, Jane was twice as old as Sam. Four years on from now, Sam will be � of... (answered by josmiceli)

sam is twice as old as jack. what is the ratio of sams age to jacks age (answered by josgarithmetic)

Six years ago, Sam was three times as old as Sue. Four years from now Sam will be twice... (answered by ankor@dixie-net.com)

Sam is x years old. Sam uncle is four times as old as sam will be in 5 years. Find the... (answered by FrankM)

Sam is x years old. Sam uncle is four times as old as sam will be in 5 years. Find the... (answered by ramkikk66)

if Sam is s years old and Jim is 3 years younger what is Jim's... (answered by JulietG)

if Sam were twice as old as he is.he would be 40 years older than Jim. if Jim is 10 years (answered by ankor@dixie-net.com)