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Mathematics 8 Online
OpenStudy (anonymous):

what is cross multiplication useful for

OpenStudy (anonymous):

When you solve proportions. For example\[\frac{ 4 }{5}=\frac{ x }{ 25 }\]

OpenStudy (anonymous):

You can solve for x by changing the fractions to 100=5x

OpenStudy (anonymous):

I got it but thank you I over read my self

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