Seudónimo
Seudónimo
07-08-2014
Mathematics
contestada
solve problem 4/15 = x/ 75
Respuesta :
luana
luana
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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