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If 0.018*10^r/0.0003*10^w=6*10^7, the r-w= [#permalink]
1
godxyz wrote:
GreenlightTestPrep
Hi sir,

In the Simplify both fractions step, shouldn't it be 0.6 instead of 60. I'm getting the answer as 8.

Thanks in advance!


In that part, I'm saying that \(\frac{0.018}{0.0003} = 60\)
One option is to use your on-screen calculator to verify.

Another option is to create an equivalent (and easier to evaluate) fraction and multiplying numerator and denominator by the same value.
Notice that, if we multiply the numerator and denominator by 10,000, we get integer values for the numerator and denominator.
Let's see what happens....

\(\frac{0.018(10,000)}{0.0003(10,000)} = \frac{180}{3}=60\)

Does that help?
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Re: If 0.018*10^r/0.0003*10^w=6*10^7, the r-w= [#permalink]
1
GreenlightTestPrep wrote:
godxyz wrote:
GreenlightTestPrep
Hi sir,

In the Simplify both fractions step, shouldn't it be 0.6 instead of 60. I'm getting the answer as 8.

Thanks in advance!


In that part, I'm saying that \(\frac{0.018}{0.0003} = 60\)
One option is to use your on-screen calculator to verify.

Another option is to create an equivalent (and easier to evaluate) fraction and multiplying numerator and denominator by the same value.
Notice that, if we multiply the numerator and denominator by 10,000, we get integer values for the numerator and denominator.
Let's see what happens....

\(\frac{0.018(10,000)}{0.0003(10,000)} = \frac{180}{3}=60\)

Does that help?


Ah, yes sir. Sorry my bad!

Thank you for your response!
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