SOLUTION: x/5 = 9/10 - 1/x
Algebra
->
Proportions
->
Lessons
-> SOLUTION: x/5 = 9/10 - 1/x
Log On
Algebra: Proportions
Section
Solvers
Solvers
Lessons
Lessons
Answers archive
Answers
Click here to see ALL problems on Proportions
Question 141970
:
x/5 = 9/10 - 1/x
Answer by
checkley77(12844)
(
Show Source
):
You can
put this solution on YOUR website!
x/5=9/10-1/x
x/5+1/x=9/10
(x^2+5)/5x=9/10
10(x^2+5)=9*5x
10x^2+50=45x
10x^2-45x+50=0
5(2x^2-9x+10)=0
2(x-2)(2x-5)=0
x-2=0
x=2 answer.
2x-5=0
2x=5
x=5/2
x=2.5 answer.