i'm a 9th grader and i need math help
2006-11-30 12:57:13 · 13 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
20meters/5 minutes = x meters/60 minutes
x = 1200/5
x = 240m / hour
x = 0.240 kph
It's a really slow car only going less than a 1/4 km per hour. I can *walk* faster than that!
2006-11-30 13:02:13 · answer #1 · answered by Puzzling 7 · 0⤊ 0⤋
Wow, I could do these when I was in 4th grade easily.
Let me think. Hmm... Speed = Distance / Time, so the speed equals 20 meters / 5 minutes. That means that it traveled 4 meters a minute.
However, we are more advanced than that and can change that to 240 meters an hour, or 0.24 km/hr.
(Must have been crowded, or that car must've been really bad quality)
2006-11-30 13:04:54 · answer #2 · answered by dennismeng90 6 · 0⤊ 0⤋
I'm assuming that you want to know how many miles per hour (mph) the car is going.
First, 5 minutes is only a portion of an hour. Specifically, it is 60 minutes/5 minutes = 12. So 5 minutes is 1/12 of an hour. If we want to know how far the car goes in an hour, we have to multiply 5 minutes by 12, and we also have to multiply the 20 meters by 12 to see how far the car goes in an hour.
Then we have that the car goes 240 meters (20 x 12) in 60 minutes (5 x 12), or 240 meters per hour.
But you probably want to know miles per hour, so we have to convert the meters to miles. 1 mile = 1609 meters. Or expressed another way, 1 meter = .00062 miles ( thats 1 mile divided by 1609 meters).
240 meters = 240 x .0062 miles per meter = 0.149 miles.
The car is going 0.149 miles per hour. This is a very slow car!
2006-11-30 13:09:27 · answer #3 · answered by keepthemhonest 2 · 0⤊ 0⤋
240meters/hour
since there are 12 periods of 5 minutes in an hour
the equation is
20/5 = x/60
x = 4 x 60
= 240
2006-11-30 13:12:41 · answer #4 · answered by want2no 5 · 0⤊ 0⤋
a million there are one thousand milligrams in a kilogram so 500 kg = 500 x 1000 2. 20 km/hr are what number metres in line with 2d? 20 km is 20 x 1000 meters in 60 x 60 seconds so the answer is 20 x 1000 / (60 x 60) 3 30 meters in 2.35 seconds so in a million 2d it is going 30/2.35 meteres in line with 2d (purely iver 6) 4 you could do this now....
2016-11-30 00:02:04 · answer #5 · answered by ? 4 · 0⤊ 0⤋
Very, very slow.
It will travel 4 meters in one minute.
That's about 12 feet per minute.
It is about 240 meters per hour.
That's about 720 feet per hour.
It is about .240 Km/Hr.
That's about .136363636363636 MPH.
2006-11-30 13:03:47 · answer #6 · answered by damndirtyape212 5 · 0⤊ 0⤋
20/5 = 4 meters per minute
If you want it in different units, like miles per hour, just google "4 meters per minute in miles per hour"
2006-11-30 13:01:22 · answer #7 · answered by NedHeadroom 1 · 0⤊ 0⤋
well im an ace within math and im guessing that the answer is probably 4
2006-11-30 13:01:49 · answer #8 · answered by switchtric 1 · 0⤊ 0⤋
4meters a min. 240 in a hour
2006-11-30 13:01:16 · answer #9 · answered by mrbaseball2012 2 · 0⤊ 0⤋
20/5=4
4m/s
2006-11-30 13:15:34 · answer #10 · answered by lulu 3 · 0⤊ 0⤋