SOLUTION: Use a porportion or the percent equation to answer the question. 28. 26 is 40% of what number? Any help with this equation would be <b>Greatly</b> appreciated.

Algebra ->  Percentages: Solvers, Trainers, Word Problems and pie charts -> SOLUTION: Use a porportion or the percent equation to answer the question. 28. 26 is 40% of what number? Any help with this equation would be <b>Greatly</b> appreciated.      Log On


   

Question 118571: Use a porportion or the percent equation to answer the question.
28. 26 is 40% of what number?
Any help with this equation would be Greatly appreciated.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Let x=unknown number

Let's translate the sentence "26 is 40% of what number". Remember, the key word "is" means equals and "of" means multiply. So "26 is 40% of what number" becomes:

26=40%*x


Now divide 40 by 100 to change the percent into a decimal (ie 40%=40%2F100=0.40


So our equation is now: 26=0.40%2Ax



26%2F0.40=cross%280.40%2F0.40%29%2Ax Now divide both sides by 0.40 to isolate x


65=x Divide 26%2F0.40 to get 65

So our unknown number is x=65


Check:

Notice if we take 40% of 65 we get

65*0.40=26

So this verifies our answer.