find the unit rate. round to the nearest hundredth, if necessary.
type 8,580 words in 2 hours 45 minutes
Typing speed is usually figured as words per minute.
2 hours, 45 minutes = 165 minutes
Divide: 8,580 / 165 = ? words per minute
445
To find the unit rate, you need to determine the number of words typed per unit of time. In this case, the unit of time is 2 hours and 45 minutes.
First, convert the time to a decimal form. There are 60 minutes in an hour, so 45 minutes is equivalent to 45/60 = 0.75 hours.
To calculate the total time in hours, add the 2 hours and 0.75 hours: 2 + 0.75 = 2.75 hours.
Now divide the total number of words typed (8,580) by the total time in hours (2.75):
8,580 words ÷ 2.75 hours ≈ 3116.36 words per hour.
Finally, round the unit rate to the nearest hundredth:
The unit rate is approximately 3116.36 words per hour, rounded to the nearest hundredth.
Therefore, the unit rate is 3116.36 words per hour.