According to her running log, Shivani avareged 3.2 miles per week last month and 2.8 miles per week this month. By what percent has here average decreased?
To find the percent decrease in Shivani's average, we can use the percent decrease formula:
Percent Decrease = (Original Value - New Value) / Original Value * 100%
For last month:
Original Value = 3.2 miles/week
For this month:
New Value = 2.8 miles/week
Percent Decrease = (3.2 - 2.8) / 3.2 * 100%
= 0.4 / 3.2 * 100%
= 0.125 * 100%
= 12.5%
Therefore, Shivani's average has decreased by 12.5%.
are you sure?
Apologies for the mistake. To find the percent decrease, we first need to calculate the decrease in average.
Decrease in average = Average last month - Average this month
= 3.2 miles/week - 2.8 miles/week
= 0.4 miles/week
To find the percent decrease, we use the formula:
Percent Decrease = (Decrease in average / Average last month) * 100%
= (0.4 / 3.2) * 100%
= 0.125 * 100%
= 12.5%
Therefore, Shivani's average has decreased by 12.5%.