Question

Question #34fbb

Answer 1

`~5.50%`

Explanation:

The equation for percent error is

`|a-m|/a*100`

Where `a=`the actual mass and `m=` the measured mass. Keep in mind that this equation can be used for things other than mass.

So in this case `a=218` and `m=230`

Now the equation is `|218-230|/218*100`

First, subtract the numbers inside the *absolute value bars

`218-230=-12`

The absolute value of `-12` is `12`.

Now the equation is `12/218*100`
`12/218=0.055045...`

`0.055045*100=~5.50%` or About `5.50%`

*Absolute value is the distance of a number from zero, so 1 and -1 both have an absolute value of 1. Basically, just make the solution of the numbers inside the absolute value bars positive.