SOLUTION: When a number is decreased by 30% of itself, the result is 126. What is the number?

Algebra ->  Customizable Word Problem Solvers  -> Finance -> SOLUTION: When a number is decreased by 30% of itself, the result is 126. What is the number?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 938738: When a number is decreased by 30% of itself, the result is 126. What is the number?
Answer by Stitch(470) About Me  (Show Source):
You can put this solution on YOUR website!
A percent is a number multiplied by 100.
So 30% can also be written as 30%2F100
---------------
Lets write our equation.
X+-+%2830%2F100%29%2AX+=+126
Simplify
X+-+0.3%2AX+=+126
Combine like terms
0.7X+=+126
Divide both sides by 0.7
highlight%28X+=+180%29