SOLUTION: Hello folks, Got a total mental block trying to help my granddaughter revise for a maths exam. how do you work this out, all help gratefully accepted Sarah is younger than Stev

Question 966220: Hello folks,
Got a total mental block trying to help my granddaughter revise for a maths exam. how do you work this out, all help gratefully accepted
Sarah is younger than Steve by 4 yrs if their ages are in the respect ratio of 7:9 how old is Sarah?
Answer by Murthy(22) (Show Source): You can put this solution on YOUR website!
Let x be the age of Steve in years
then Sara will be (x-4) yrs old
Given,
(x-4)/x=7/9
therefore,
9x-36=7x
x=18 years
Steve is 18 years and Sara is 14 years old

RELATED QUESTIONS
how do you to algebra? im really stuck to revise for my... (answered by stanbon)

hello there, i have a question on bearings. i have a maths exam next week and it's my... (answered by Fombitz)

Hello, My test for maths in on Monday and the teacher hasn't explained how to do one of (answered by math-vortex)

Hi, I am trying to work out the total of my scores so I am able to know how much marks I (answered by jim_thompson5910)

how do you work out this formula? The following data are exam grades of 10 students in a (answered by ewatrrr)

How do you solve the following ? x/2 -6 = x/7 -1 I am trying to study for my final (answered by MathTherapy)

Hello here is my question for my assisnment. Let's say you got a 78 on a Stats exam.... (answered by richwmiller)

HELLO MY SON HAS A QUESTION ABOUT SOLVING THIS PROPORTION USING MENTAL MATH. 18 OVER 32=M (answered by checkley71)

Hi, I am trying to help my granddaughter with her homework. She has the following... (answered by Alan3354)