3 years ago

How can I simpliy |-15| + |-26|?

Mathematics

2 answers:

deff fn [24]3 years ago

8 0

A negative number inside of | | will become positive when taken out of it.

|-15| = 15
|-26| = 26

15 + 26 = 41

nlexa [21]3 years ago

4 0

The brackets represent absolute value the absolute value is ALWAYS POSITIVE 15+26= 41

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1 year ago

Jessie estimates the weight of her cat to be 10 pounds. The actual weight of the cat is 13.75 pounds. find the percent error.

romanna [79]

Answer:

$\large \boxed{27 \, \%} }$

Step-by-step explanation:

$\begin{array}{rcl}\text{Percent error}&= &\dfrac{\lvert \text{Measured - Actual}\lvert}{ \text{Actual}} \times100 \,\%\\\\& = & \dfrac{\lvert 10 - 13.75\lvert}{13.75} \times 100 \, \% \\\\& = & \dfrac{\lvert -3.75\lvert}{13.75} \times 100 \, \%\\ \\& = & \dfrac{3.75}{13.75} \times 100 \,\%\\\\& = & 0.27 \times 100 \, \%\\& = & \mathbf{27 \, \%}\\\end{array}\\\text{The percent error is $\large \boxed{\mathbf{27 \, \%} }$}$