Question

1) A student is investigating cell phone use in his hometown. The residents used

their cell phones for 450,980 minutes last year. This is 32.5% more than this year.
How many minutes did the residents use their cell phones this year?

Answer 1

Last year's cell phone usage was 32.5% more than this year. By dividing last year's usage (450,980 minutes) by 1.325, we find this year's usage is 340,359 minutes when rounded up to the nearest whole minute.

Step-by-step explanation:

To calculate this year's cell phone usage if last year it was 32.5% more, we consider last year's usage as 132.5% of this year's usage.

Let x be the minutes of cell phone use this year.

We then write the equation as 1.325x = 450,980 minutes.

To find x, we divide 450,980 by 1.325, getting x = 340,358.49 minutes.

However, since we can't have a fraction of a minute, we round to the nearest whole minute.

According to the instruction to round up to the next higher value, this year's usage is 340,359 minutes.