In 1991, the separation between
goalpost uprights in college football changed from 23 feet 4 inches to 18 feet 6 inches. What percent reduction was this?
(accurate to tenths)
23.3333 - 18.5 = 4.8333
4.8333/23.3333= 0.2071 = 20.7%
Question answered. Thank you.
To calculate the percent reduction in the separation between the goalpost uprights in college football from 1991, we need to compare the difference between the two measurements as a percentage of the original measurement.
First, let's find the difference between the two measurements:
Old separation: 23 feet 4 inches
New separation: 18 feet 6 inches
To make these measurements easier to work with, let's convert them both to inches:
Old separation: (23 * 12) + 4 = 280 inches
New separation: (18 * 12) + 6 = 222 inches
Now, we can find the difference:
Difference = Old separation - New separation
Difference = 280 inches - 222 inches
Difference = 58 inches
Next, we need to calculate the percent reduction. To do this, we divide the difference by the original measurement and multiply by 100:
Percent reduction = (Difference / Old separation) * 100
Percent reduction = (58 / 280) * 100
Calculating this, we find that the percent reduction is approximately 20.7%, accurate to tenths.
So, the separation between the goalpost uprights in college football was reduced by approximately 20.7% in 1991.