# Linear equation with percentage

• May 1st 2012, 09:23 AM
Builderjay2011
Linear equation with percentage
Here's the question I am having difficulty with. Sorry I am old and not used to this.(Happy)

16 2/3%d = 4

Can anyone assist? Thanks! :)
• May 1st 2012, 09:27 AM
Prove It
Re: Linear equation with percentage
Quote:

Originally Posted by Builderjay2011
Here's the question I am having difficulty with. Sorry I am old and not used to this.(Happy)

16 2/3%d = 4

Can anyone assist? Thanks! :)

So are you trying to find what d is if sixteen and two thirds percent of d is 4?
• May 1st 2012, 09:34 AM
Builderjay2011
Re: Linear equation with percentage
Yes
• May 1st 2012, 09:59 AM
earboth
Re: Linear equation with percentage
Quote:

Originally Posted by Builderjay2011
Here's the question I am having difficulty with. Sorry I am old and not used to this.(Happy)

16 2/3%d = 4

Can anyone assist? Thanks! :)

Get rid of the percentage and re-write the equation using fractions:

$\displaystyle 16 \frac23 \% \cdot d = \frac{50}3 \% \cdot d = \frac{50}3 \cdot \frac1{100} \cdot d = \frac{50}{300} \cdot d = \frac16 d$

$\displaystyle \frac16 d = 4$