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Mathematics 14 Online
OpenStudy (anonymous):

I need help with this (probably simple for you) ratio question. I need to know how to work it out

OpenStudy (anonymous):

OpenStudy (anonymous):

The first answer i know, 175:6428. But I need help with question B

OpenStudy (lgbasallote):

hmm... do you know what value you'll divide 175 to get 1?

OpenStudy (anonymous):

175?

OpenStudy (lgbasallote):

right. so what number will you get if you divide 6428 by 175?

OpenStudy (anonymous):

36.731428

OpenStudy (lgbasallote):

right. so what is that to the nearest whole number?

OpenStudy (anonymous):

37

OpenStudy (lgbasallote):

there's your answer

OpenStudy (anonymous):

Thank you so much, that was easier than I thought!!

OpenStudy (lgbasallote):

if you want a formal explanation...that was proportion.. \[\frac{175}{6428} = \frac 1x\] you need to solve for x so cross multiply \[\implies 175x = 6428\] divide both sides by 175 \[\implies \frac{6428}{175}\]

OpenStudy (anonymous):

Great help! I fully understand that now

OpenStudy (lgbasallote):

wonderful

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