# Question 34fbb

Oct 14, 2016

~5.50%

#### Explanation:

The equation for percent error is

$| a - m \frac{|}{a} \cdot 100$

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 $| 218 - 230 \frac{|}{218} \cdot 100$

First, subtract the numbers inside the *absolute value bars

$218 - 230 = - 12$

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

Now the equation is $\frac{12}{218} \cdot 100$
$\frac{12}{218} = 0.055045 \ldots$

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.