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?
25 mph
37 mph
41 mph
49 mph
56 mph
explain how u got the answer plz
2007-03-08 03:19:05 · 7 answers · asked by female 1 in Science & Mathematics ➔ Mathematics
distance=speed*time
speed=distance/time
speed = 28/0.5 (30min=0.5hrs)
speed=56mph Ans
2007-03-08 03:24:38 · answer #1 · answered by Maths Rocks 4 · 1⤊ 0⤋
Has to be 56mph
In 1 hour @ 56 mph you would travel 56 miles
Therefore in 1/2 hour you would travel (56miles / 2 ) = 28 miles
2007-03-08 11:33:49 · answer #2 · answered by Doctor Q 6 · 0⤊ 0⤋
The answer is 56 mph. If he goes 56 miles in 60 minutes he will go 28 miles in 30 minutes. its that easy
2007-03-08 11:28:37 · answer #3 · answered by dkroirl 1 · 0⤊ 0⤋
28 miles in 30 mins, means 56 miles in 60 mins = 56mph
2007-03-08 11:24:25 · answer #4 · answered by tsunamijon 4 · 0⤊ 0⤋
Convert your time to hours.
30 min. / (60 min./hr.) = .5 hr
Now divide the distance by the time.
28 mi. / .5 hr = 56 mph..
2007-03-08 11:22:16 · answer #5 · answered by uahgrad05 3 · 0⤊ 0⤋
56mph! It means you can go 56 miles per hour, therefore, in half an hour, you can get to 28 miles!
2007-03-08 11:25:20 · answer #6 · answered by deovolenty 2 · 1⤊ 0⤋
56 because you have to get there in 30 min. so you have to go double 28mph. so the answer is 56mph.
2007-03-08 11:27:46 · answer #7 · answered by Twister 4 · 0⤊ 0⤋