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Mathematics 7 Online
OpenStudy (anonymous):

will medal and fan for help

OpenStudy (anonymous):

26% of what number is 39???????

OpenStudy (solomonzelman):

No need for medal or fans. \(\large\color{black}{ 26\text{%} }\) is same as multiplying times \(\large\color{black}{ 0.26 }\). So if you want to find (for instance) \(\large\color{black}{ 40\text{%} }\) of what number is \(\large\color{black}{ 50 }\)? then you would do, this: \(\large\color{black}{ 40\text{%} ~~~of~~x=50 }\) \(\large\color{black}{ 0.40x=50 }\) \(\large\color{black}{ x=125 }\)

OpenStudy (solomonzelman):

So 40% of \(\large\color{black}{ \underline{125} }\) is 50.

OpenStudy (anonymous):

thank you so much

OpenStudy (solomonzelman):

Do a similar thing for your problem:) Tell me if tyou need more help.

OpenStudy (anonymous):

i am stuck @SolomonZelman

OpenStudy (solomonzelman):

I'll set the equation up for you. \(\large\color{black}{ 26\text{%}~~~of~~~x~~=~39 }\)

OpenStudy (solomonzelman):

then, say, \(\large\color{black}{ 0.26x~~=~39 }\) and solve for x.

OpenStudy (anonymous):

26%=0.26

OpenStudy (solomonzelman):

if you are still struggling let me know.

OpenStudy (solomonzelman):

yes, you are correct 0.26=26%, so when we say 26% of x, we are as if multiplying x times 0.26.

OpenStudy (anonymous):

i got the answer thanks so much @SolomonZelman

OpenStudy (solomonzelman):

what do you get? (what to verify, if you don't mind)

OpenStudy (anonymous):

i got 150

OpenStudy (anonymous):

using n not x

OpenStudy (solomonzelman):

Yes, 150 is right. And doesn't matter which variable you use n, or x... it is all same.

OpenStudy (anonymous):

oh ok thanks so much for your help

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