danielkneeroacaama
danielkneeroacaama danielkneeroacaama
  • 10-05-2016
  • Mathematics
contestada

Solve for n.

4/44 = n/77

A. n = 4

B. n = 7

C. n = 28

D. n = 264

Respuesta :

TSO
TSO TSO
  • 10-05-2016
[tex]\frac{4}{44} =\frac{1\times4}{11\times 4}= \frac{1}{11} = \frac{1\times 7}{11\times 7} = \frac{7}{77}\\\\n= 7[/tex]

Your answer is B.

Another way to solve it is by cross multiplying.

[tex]\frac{4}{44} = \frac{n}{77}\\\\4 \times 77 = 44n\\\\n = \frac{4\times 77}{44}\\\\n = 7[/tex]

Answer is B.
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