SOLUTION: Rekha little sister is now 5 years old if her age is 2 years more than one forth of rekha age how old rekha is?

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: Rekha little sister is now 5 years old if her age is 2 years more than one forth of rekha age how old rekha is?       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 1063334: Rekha little sister is now 5 years old if her age is 2 years more than one forth of rekha age how old rekha is?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
:
let r = Rek's age
let s = Sis age
:
write an equation for each statement:
" Rekha little sister is now 5 years old "
s = 5
"if her age is 2 years more than one forth of rekha age"
s = 1%2F4r + 2
replace s with 5 (from the first statement)
5 = 1%2F4r + 2
get rid of the fraction, multiply both sides by 4
4(5) = 1r + 4(2)
20 = r + 8
subtract 8 from both sides
20 - 8 = r
12 = r
:
how old rekha is? She's 12 year old
:
:
Check this in the statement
" Sister's age is 2 years more than one forth of rekha age"
5 = 1%2F4(12) + 2
5 = 3 + 2