John is traveling to a meeting that is 28 miles away. He needs to be there in 30 minutes. How fast does he need to go to make it to the meeting on time?
2006-11-20 04:14:48 · 12 answers · asked by Serrato 1 in Education & Reference ➔ Homework Help
If he drives at 60 mph he will get there with two minutes to spare.
2006-11-20 04:17:02 · answer #1 · answered by Anonymous · 0⤊ 0⤋
If he went 56 miles an hour he would get there in 1 hour, so if he wants to go 1/2 that far, he would go the same speed and get there in 30minutes. Answer is 56 mph.
2006-11-20 12:20:20 · answer #2 · answered by Anonymous · 0⤊ 0⤋
You measure speed in miles per hour. "Per" always means "divided by" in math. So you'd find the speed by taking miles divided by hours.
Here you've got 28 miles and 0.5 hours (30 minutes), so you take 28/.5 = 56 mph.
... By the way, to be sure he's on time, he'd probably do better to go just a bit faster than that.
2006-11-20 12:31:49 · answer #3 · answered by dmb 5 · 0⤊ 0⤋
56 mph. That means he can drive 56 miles in one hour. if you halve that then you get 28 miles in 30 minutes
2006-11-20 12:17:24 · answer #4 · answered by Jason O 3 · 1⤊ 0⤋
56 miles an hour
2006-11-20 12:16:35 · answer #5 · answered by slamman190 1 · 0⤊ 0⤋
56 mph
2006-11-20 12:27:10 · answer #6 · answered by Hootcoot 2 · 0⤊ 0⤋
56 MPH without stopping
2006-11-20 12:19:11 · answer #7 · answered by Anonymous · 0⤊ 0⤋
100 miles an hour that way he is there without any possibility of being late what so ever
2006-11-20 12:22:48 · answer #8 · answered by LT. DAN 4 · 0⤊ 0⤋
56 mph.
2006-11-20 12:18:54 · answer #9 · answered by arrizona 3 · 0⤊ 0⤋
If he travels at 28mph, he'll get there in one hour, so he needs to go twice as fast, or 56mph, to get there in 30min.
2006-11-20 12:17:24 · answer #10 · answered by Anonymous · 0⤊ 0⤋