Percentage Calculation

KWF

Junior Member
Joined
Feb 19, 2010
Messages
204
In the following percentage calculation, r = p X 1/100, does the calculation become r = (100 X r) X 1/100 if the "p" is isolated to the right hand side of the calculation?

I think that it would look like the following:

After multiplying both sides of r = p X 1/100 by 100 the result would be 100 X r = p.

In the original calculation, I replaced "p" with (100 X r) since "p" now equals (r X 100).

My question is as follows: Is the following calculation correct since it has two r's in it?

r = (100 X r) X 1/100 Is this correct?
 
In the following percentage calculation, r = p X 1/100, does the calculation become r = (100 X r) X 1/100 if the "p" is isolated to the right hand side of the calculation?

I think that it would look like the following:

After multiplying both sides of r = p X 1/100 by 100 the result would be 100 X r = p.

In the original calculation, I replaced "p" with (100 X r) since "p" now equals (r X 100).

My question is as follows: Is the following calculation correct since it has two r's in it?

r = (100 X r) X 1/100 Is this correct?
Yes, since \(\displaystyle \frac{100}{100}= 1\), that just says "r= r".
 
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