2006-10-12 04:19:35 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
(28Miles/30min)*(60min/hour) = 56Miles/Hours
Therefore the car is averaging 56MPH.
However this is only the average MPH unless the car is going at a constant speed. It is still possible to go at other speeds and average 56MPH.
2006-10-12 04:29:07 · answer #1 · answered by Mariko 4 · 2⤊ 0⤋
The car traveled 28 miles in 30 mins. So, In 1 hr, it will travell a distance of 28*2=56 miles.
Now Speed = Distance travelled/time taken
= 56 miles/1 hr
= 56 mph
2006-10-12 11:39:52 · answer #2 · answered by alam_1209 1 · 1⤊ 0⤋
I'll show you how to do the conversion
(28 miles)/(30 minutes) will give it to you in the form of a speed.
1. Convert the minutes to hours by multiplying by the conversion factor:
(28 miles)/(30 minutes) * (60 minutes)/(1 hour)
2. Cancel out the minutes units and you will have:
(28 miles * 60)/(30 * 1 hour)
3. Multiply through on the numerator and denominator:
(1680 miles)/(30 hours)
4. Divide the coefficients to get the speed:
56 miles/hour
=)
2006-10-12 11:31:24 · answer #3 · answered by flossie116 4 · 1⤊ 0⤋
56 miles per hour.
(28 miles in 30 mins:
multiply above by 2, we have
56 miles in 60 mins.
56 miles in 1 hour as 60 minutes=1 hour.
so, it is 56 mph.)
2006-10-12 11:38:44 · answer #4 · answered by Anonymous · 1⤊ 0⤋
d = rt
Solving for r
d = rt
d/t = rt/t
d/t = r This formula will be used
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let
28 is the miles traveled
30/60 = 1/2 or .5 30 minutes is 1/2 hour or .5
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d/t = r
Divide the distance traveled by . 5
28 ÷ .5 = 56
The answer is 56 miles per hour
2006-10-12 14:46:35 · answer #5 · answered by SAMUEL D 7 · 0⤊ 0⤋
56 Mph average.
(as 30 mins is half an hour just double the distance to find the average speed)
2006-10-12 11:22:45 · answer #6 · answered by Stuart T 3 · 1⤊ 0⤋
56 mph on average.
2006-10-12 11:26:32 · answer #7 · answered by smarties 6 · 1⤊ 0⤋
56 MPH
2006-10-12 11:27:04 · answer #8 · answered by kram_7777 3 · 1⤊ 0⤋
56!
2006-10-12 11:25:10 · answer #9 · answered by miyuki & kyojin 7 · 1⤊ 0⤋
60 MPH. I rounded up.
2006-10-12 11:27:46 · answer #10 · answered by chazzer 5 · 0⤊ 1⤋