Question 1041878
Lt a = Andy's age
let m = mothers age
:
Write an equation for each statement
:
Andy says my mother is 9 times as old as i am.
m = 9a
 In 3 years she will be only five times as old as i will be.
m + 3 = 5(a + 3)
m + 3 = 5a + 15
m = 5a + 15 - 3
m = 5a + 12
replace m with 9a (from the 1st statement)
9a = 5a + 12
9a - 5a = 12
 4a = 12
 a = 12/4
 a = 3 yrs is Andy's age
:
:
Find Mom's age and Check this out in the 2nd statement
m = 9(3)
m = 27 yrs
"In 3 years she will be only five times as old as i will be"
27 + 3 = 5(3 + 3)
30 = 5(6)