Seudónimo Seudónimo

07-08-2014
Mathematics

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solve problem 4/15 = x/ 75

Respuesta :

07-08-2014

[tex]\frac{4}{15}=\frac{x}{75}\\\\ Cross\ multiplication\\\\ 75*4=15x\\ 300=15x\ |:15\\ x=\frac{300}{15}=20\\ Answer\ is\ x=20.[/tex]

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Аноним Аноним

07-08-2014

4/15=x/75 (Multiply the numerator and the denominator of the fraction on the left hand side of the equation by 5)

20/75=x/75

x=20.

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