Question

for a school project, carrie is investigating cell phone use in her hometown, morristown. it turns out that residents of morristown used their cell phones for 5,560 minutes last year. it also turns out that they used them 25% more than that this year. for how many minutes did the residents of morristown use their cell phones this year? minutes

Explanation:

Step1: Let this year's usage be $x$.

Last - year's usage is 25% more than this year's, so last - year's usage is $x+0.25x = 1.25x$.

Step2: Set up the equation.

We know that last - year's usage is 5560 minutes, so $1.25x=5560$.

Step3: Solve for $x$.

$x=\frac{5560}{1.25}=\frac{5560}{\frac{5}{4}}=5560\times\frac{4}{5}=4448$.

Answer:

4448