re arrange a formula

re arrange a formula

Postby pbasht » Wed Apr 15, 2020 2:49 am

Hi all,

Is it possible to re-arrange the following formula so that I can find the value of CT?

The formula is as follows

[tex]NT = (CT/100) * 0.000011574077[/tex]

To be re-aaranged to

CT = .......

Thank you in advance
Paul.
pbasht
 
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Re: re arrange a formula

Postby Guest » Wed Apr 15, 2020 6:23 am

[tex]NT=(CT/100)∗0.000011574077[/tex]

[tex]\frac{NT}{0.000011574077} = \frac{CT}{100}[/tex]

[tex]\frac{NT*100}{0.000011574077} = CT[/tex]

[tex]CT = \frac{NT}{0.0011574077}[/tex]
Guest
 

Re: re arrange a formula

Postby Guest » Tue Apr 21, 2020 8:07 am

If you were given a value of CT and asked to find QT it would be straightforward calculation- first divide CT by 100 then multiply by 0.000011574077. And of course do the same thing to the other side of the equation.

Here the problem is the opposite- solve for CT as if you were given a value of QT. So do the opposite!

Do the opposite calculations in the opposite order. First divide by 0.000011574077 then multiply by 100.

Unfortunately, this "guest"s last step is incorrect:
[tex]\frac{QT(100)}{0.000011574077}= \frac{QT}{0.0000001157407}[/tex].
The 100 in the numerator increases the number or 0s after the decimal point by 2, not decreases it.
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