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Mathematics 8 Online
OpenStudy (anonymous):

I NEED HELP WITH PRECENT PROPORTIONS?? ASAP PLEASE

terenzreignz (terenzreignz):

Let's hear it :D

OpenStudy (anonymous):

45 OVER 100 = 20 OVER X

terenzreignz (terenzreignz):

\[\Large \frac{45}{100}= \frac{20}{x}\]

terenzreignz (terenzreignz):

Cross multiply: \[\Large \frac{\color{red}{45}}{\color{green}{100}}=\frac{\color{green}{20}}{\color{red}x}\] Top times bottom; bottom times top; Red times Red, Green times Green, and they're equal.

OpenStudy (anonymous):

A) of what number is ? B) What is of ? C) is what percent of ? D) is of what number?

OpenStudy (anonymous):

IT GIVES ME THESE CHOICES

terenzreignz (terenzreignz):

... they don't make sense to me D

OpenStudy (anonymous):

SORRY I LEFT OUT THE NUMBERS LOL

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