The record for the Boston Marathon's wheelchair division is one hour 18 minutes and 27 seconds
A) The Boston Marathon is 26.2 miles long what was the average speed of the record winner of the wheelchair division round to the nearest hundredth
B) at this rate how long would it take this competitor to complete a 30 mile race
I need help on B, please help I don't understand
do it in seconds
(30/26.2)( 1*3600 + 18*60 + 27) seconds
= (30/26.2) (4707 seconds)
= 5390 seconds
take off one hour which is 3600 seconds
1 hour and 1790 seconds
note 1790/60 = 29.83
so take off 29 minutes which is 1740 seconds
1 hour and 29 minutes and (1790-1740)seconds
so
1 hour and 29 minutes and 50 seconds
Thank you!!! That was a HUGE help!!!!!!
So im a lil confused was part A answered
i play fortnite
but can someone pls answer A)?
You are welcome.
no
To find the answer to part B, we can use the concept of units and rates. We know that the Boston Marathon is 26.2 miles long, and the record time for the wheelchair division is 1 hour 18 minutes and 27 seconds.
First, let's convert the time into hours. We can convert 1 hour 18 minutes and 27 seconds into decimal form by dividing the number of minutes by 60 and the number of seconds by 3600 (since there are 60 minutes in an hour and 60 seconds in a minute).
1 hour 18 minutes = 1 + 18/60 = 1.3 hours
27 seconds = 27/3600 = 0.0075 hours
Now, we can calculate the average speed in miles per hour by dividing the distance (26.2 miles) by the time in hours.
Average speed = 26.2 miles / (1.3 hours + 0.0075 hours)
To simplify the calculation, we can convert the time into decimal form before dividing:
Average speed = 26.2 miles / 1.3075 hours
Now, calculate the average speed:
Average speed ≈ 20.02 miles per hour
So, the average speed of the record winner of the wheelchair division in the Boston Marathon is approximately 20.02 miles per hour.
To find the answer to part B, let's use the average speed we just calculated. We need to find out how long it would take this competitor to complete a 30-mile race at the same average speed.
Since the competitor's average speed is 20.02 miles per hour, we can use the formula:
Time (in hours) = Distance / Speed
Substituting the values:
Time (in hours) = 30 miles / 20.02 miles per hour
Time (in hours) ≈ 1.50 hours
To convert the time back to minutes, multiply by 60:
Time (in minutes) ≈ 1.50 hours × 60 minutes per hour
Time (in minutes) ≈ 90 minutes
Therefore, at the same average speed, it would take this competitor approximately 90 minutes to complete a 30-mile race.