#### Explanation:

She spended 10% of her savings, that can also be said as per every $100 she had, she spended$10 of them.
This can be written as
$73 \cancel{0} \times \frac{1 \cancel{0}}{1 \cancel{0} \cancel{0}} = x$
Where $x$ is the money spended in phone
$73 = x$
She spended $73 on her phone Nov 13, 2017 See a solution process below: #### Explanation: We can rewrite this problem as: What is 10% of$730?

"Percent" or "%" means "out of 100" or "per 100", Therefore 10% can be written as $\frac{10}{100}$.

When dealing with percents the word "of" means "times" or "to multiply".

Finally, lets call the amount of money we are looking for "m".

Putting this altogether we can write this equation and solve for $m$ while keeping the equation balanced:

m = 10/100 xx $730 m = ($7300)/100

m = $73.00 Laura spent$73.00

Nov 13, 2017

Nov 13, 2017

$73 #### Explanation: In the beginning, she has $730

Now we should understand what 10% is. 10% means $10$ parts of $100$ parts , that is:

color(blue)(10/100

Now, we multiply it with the total savings

$\rightarrow 730 \times \frac{10}{100}$

$\rightarrow \frac{7300}{100}$

$\rightarrow \frac{73 \cancel{00}}{1 \cancel{00}}$

rArrcolor(green)($73 So, she spends $73 on her phone

Hope that helps!!! ☺☻