If 10^x equals 0.1 percent of 10^y, where x and y are integers, which of the following must be true?
a. y=x+2
b. y=x+3
c. x=y+3
d. y=1,000x
e. x=1,000y

Question

MandieSwanagan MandieSwanagan

20-07-2015
Mathematics

contestada

If 10^x equals 0.1 percent of 10^y, where x and y are integers, which of the following must be true?
a. y=x+2
b. y=x+3
c. x=y+3
d. y=1,000x
e. x=1,000y

Respuesta :

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naǫ naǫ · Answer 1 · 2015-07-20T20:01:06+02:00

naǫ naǫ

20-07-2015

[tex]10^x=0.1 \% \times 10^y \\ \\ 10^x=\frac{0.1}{100} \times 10^y \\ \\ 10^x=\frac{1}{1000} \times 10^y \\ \\ 10^x=\frac{10^y}{10^3} \\ \\ 10^x=10^{y-3} \\ \\ \log_{10} 10^x=\log_{10} 10^{y-3} \\ \\ x=y-3 \\ \\ y=x+3[/tex]

The answer is B.

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If 10^x equals 0.1 percent of 10^y, where x and y are integers, which of the following must be true? a. y=x+2 b. y=x+3 c. x=y+3 d. y=1,000x e. x=1,000y

Respuesta :

Otras preguntas

If 10^x equals 0.1 percent of 10^y, where x and y are integers, which of the following must be true?
a. y=x+2
b. y=x+3
c. x=y+3
d. y=1,000x
e. x=1,000y