When a number is decreased by 10% of itself, the result is 54. What is the number

Question

Whats the answer

Answer 1

Hi Bob,

 

I just saw this question you posted. I'll help you break down the question, and it should be relatively easy to solve.

 

Let's use the variable X for the number they're asking you to find.

"is decreased by" --- means subtraction

"10% of itself" --- use ".1X"

"the result is 54" --- use "equals 54"

 

From there, I hope you can set up an equation.

There is another way to solve this, but the other way might be less helpful.

 

 

Good luck!

Answer 2

Hello Bob

 

Let x = the number

 

x - 10%x = 54

 

x - 0.1x = 54

 

0.9x = 54

 

x = 54 / 0.9 = 60