For a school project, Shawn is investigating cell phone use in his hometown, Springtown. It turns out that residents of Springtown used their cell phones for $2,930$ minutes last year. It also turns out that they used them $10\%$ less this year. For how many minutes did the residents of Springtown use their cell phones this year? $\newline$ ____ minutes

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Grade 8

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Q. For a school project, Shawn is investigating cell phone use in his hometown, Springtown. It turns out that residents of Springtown used their cell phones for

2,930

minutes last year. It also turns out that they used them

10\%

less this year. For how many minutes did the residents of Springtown use their cell phones this year?

\newline

____ minutes

Calculate decrease in minutes: Calculate the decrease in minutes due to the $10$ % reduction. $\newline$ Reasoning: $10$ % of last year's usage needs to be calculated to find out how much less the residents used their phones this year. $\newline$ Calculation: $2930 \times 0.10 = 293$ minutes.
Subtract decrease from total: Subtract the decrease from last year's total to find this year's usage. $\newline$ Reasoning: To find this year's usage, subtract the decrease from last year's total. $\newline$ Calculation: $2930 - 293 = 2637$ minutes.