The speed of a car is 210 MpH, Time equals 2 hours. What is the distance travelled?
405137
thats easy!\nwe know distance = speed * time\ntherefore distance = 210 * 2\n                   = 420 miles
831693
Let x be the distance he walked.\n\ntime = distance/speed\n\nso time walked + time in truck = 10 hours\n\nx/5 + x/20 = 10\n\nmultiply by 20\n\n4x + x = 200\n5x = 200\nx= 40 km\n\nCheck - he spent 40/5 = 8 hrs walking out, and 40/20 = 2 hours walking back for a total of 10 hrs.
860357
65mi/hr equals 95.33ft/sec\nthe travel distance: 95.33ft/s*3s=285.99ft\nif 1 car equals 20ft then 285.99ft equals 14 cars and 6ft
1009103
We have a formula:\nSpeed = Distance / Time\nhere Time= Distance /Speed.==D/S\nD=100km in both cases\nS1= 125km/hr; S2= 80km/hr\n\nT1=D/S1==100/125 hrs === 4/5hrs===4/5*60mins= 48mins\nT2=D/S2==100/80 hrs ===5/4 hrs ===5/4*60 mins= 75mins\n\nTime saved = T2-T1==75-48=27 mins.\n\nIs this clear buddy
822312
wish I could solve em for you but ill try and help still.\n\n1) The acceleration should be the derivative of the equation for the car's velocity.  The original distance/time equation would be the anti-derivative of the velocity.  \n\n2 The equation to find out how long it will take to get there is h+ax-16x^2 in feet.  (a is the original speed and x is number of seconds and h can be the height of the building.)\n\nHope this helps
715166
Distance is found to be the product of velocity and time.  E.G. if you travel at 60 MPH for 2 hours, you travelled (60 M/h) * (2 h).  The hours units cancel giving the answer as 120 miles.\n\nUsing this formula:\nd = v * t\n57 = v * 1.8, so v = 57/1.8 = 31 2/3 FPS.\nTo convert FPS to MPH,\n(31 2/3) * (60*60/5280) = 21.6 MPH.
782101
East bound speed=x, in 5 hours 5x\nWest                     =x+6,             5x+30\n10x+30=240\nx=21 miles per hour.\nEast=21\nwest=27\nVR
694439
D(istance) =  S(peed)   x   T(ime)\nor   D / T   =  S\n12 minutes =  .20 hr  \n11km /  .20h  =    55 km/h
30694
20m/s.\nbecause the total time is 5s. and by defn of average speed it is the ratio of total distance travelled to total time taken i.e 100/5 = 20m/s
893501
44.44444 mph.  If the distance of one leg is x miles, then you drove a total of 2x miles in (x/40 + x/50) hours.  Divide the total distance driven by the total time spent driving, and you get 200/9, or 44.444... mph
522298
look there's a 1&#92;6 because there are 2 hours(120 minutes)\n20 minutes is just 1&#92;6 of 120 minutes. is simple
757576
To solve this problem, you need to find the time the bus needed to travel the 200 miles.  You should divide this problem into 3 intervals:\n\n1) 150 MPH for first 50 miles\n2) 125 MPH for 2 minutes\n3) 150 MPH for reaminder of trip\n\nFor interval 1, we need to caclulate the time taken to travel 50 miles:\n\n(50 miles)(1 hour / 150 miles) = 1/3 hour = 20 min\n\nFor interval 2, we needed to calculate the distance traveled in order to solve for interval 3:\n\n(125 miles / 1 hour)(2/60 hour) = 25/6 miles\n\nNow, we can find the # of miles for interval 3:\n\n# miles = 200 - (50 + 25/6) = 875/6 miles \n\nNow we can find the time needed to travel this distance:\n\n(875/6 miles)(1 hour / 150 miles) = 35/36 hour (around58 min)\n\n---------\n\nTo find average speed, you need to take [total distance/ time].  therefore,\n\navg. speed = [200 miles]/[(1/3) + (1/30) + (35/36) hr] ------->\n\n149.38 miles per hour\n\n------------\n\nHope this helps
532915
speed=distance/time\nso ans=118.5/14 =8.4642km/hr
36001
A: 56 mph x 1.5 hours = 84 miles\n\n\nB: Distance = 100 total miles - 84 miles = 16 miles.\nTime = 30 minutes = 0.5 hours.\n\nAverage speed = 16 miles / 0.5 hours = 32 miles per hour.\n\n\nC: Total trip miles = 100 miles\nTotal time = 2 hours (1 hour 30 minutes for first leg, 30 minutes for final leg)\n\nAverage speed = 100 miles / 2 hours = 50 miles per hour.
325281
OK, this is a simple unit conversion problem, buddy. First, get your measurements into similar units: in this case, change your minutes into hours (1 hr/60 min). You'll end up with.\n\n(40 km/h * .5 h) + (60 km/h * .25 h)\n\nThe hours will cancel out, and you'll be left with the kilometers.\n\n20 km + 15 km = 35 km\n\nIn this instance, the direction of travel doesn't matter: the question asks the distance traveled, not how far away from the point of origin you are.
202957
How far apart are the marks?\nTime taken to travel between the marks?\nSpeed = distance divided by time.
798019
Since car 1 drove for 2.5 hours at 90 km/h, car 1 went 225 km.  So it's clear that L is not on the line between A and B, and that the distance from A to L is 225 km.  The distance from A to B is 80 km.  There must be something in the picture that tells you one additional piece of information about the triangle ALB, that will allow you to calculate the distance from B to L.  That distance, divided by 2.5 hours, is the speed of car 2.