85 miles
Well, we know that in an hour, you'll go 50 miles. And 30 minutes is half an hour. So 50 divided by 2 is 25. That means that you will cover 25 miles in 30 minutes going 50 miles per hour.
(19.76 miles)/[(42.23 minutes)/(60 minutes/hour) = 28.08 miles/hour, to the justified number of significant digits.
22.5 miles.
36.4 minutes going 60 miles per hour.
Well, 30 minutes is exactly half of an hour so you would cover half of the 40 miles = 20 miles
85 miles
Well, we know that in an hour, you'll go 50 miles. And 30 minutes is half an hour. So 50 divided by 2 is 25. That means that you will cover 25 miles in 30 minutes going 50 miles per hour.
75 minutes is 1.25 hours. going 14.6 miles each hour means you multiply 1.25 by 14.5 and you get 18.125
You cover 8 miles in 30 minutes.
If you're going 70 miles per hour, the first hour will obviously cover that first 70 miles. the remaining 20 miles divided by 70 is about .29 of an hour, or about 17.1 minutes. In total, a 90 mile hour trip going consistently 70 per hour will take about an hour and 17 minutes.
40 miles in 1 hour 2 miles in 2(1/40) of hour or in 1/20 of hour or in 60/20 = 3 minutes
1 hour = 60 minutes so 20 minutes = 20/60 = 1/3 hours So, at 50 miles per hour, you would travel 50*1/3 miles = 16.666 .. miles
you go 67.5 miles as 90/4*3= 67.5
14 miles. Divide 35 by 60, then multiply by 24.
60 minutes = 1 hr so 20 minutes = 20/60 = 1/3 hour 70 x 1/3 = 23 and 1/3 miles
If you have to cover 21 miles in 21 minutes, then you need to cover 1 mile every minute. There are 60 minutes in an hour, so if you kept that up for an hour, you'd cover 60 miles.