Tutors Answer Your Questions about Travel Word Problems (FREE)
Question 381977: Bill and Roger want to race. Bill runs an average of 12 mph and Roger runs an average of 10 mph. To 'even things up' Bill lets Roger have a head start of .15 hour. How long before Bill catches up?
this is what I did:
12(x)=10(.15)
x=.125
or 7.5 minutes
Is that correct?
I also came up with 45 minutes...
Click here to see answer by mananth(12270)  |
Question 382184: Suppose that the distance a car travels varies directly with the amount of gasoline it uses. A certain car uses 9 gallons of gasoline to travel 234 miles. How many miles can the car travel if it has 23 gallons of gasoline?
Click here to see answer by vleith(2825) |
Question 382184: Suppose that the distance a car travels varies directly with the amount of gasoline it uses. A certain car uses 9 gallons of gasoline to travel 234 miles. How many miles can the car travel if it has 23 gallons of gasoline?
Click here to see answer by stanbon(57967) |
Question 382246: a truck enters a highway driving 60 mph. A car enters the highway at the same place 7 minutes later and drives 71 mph in the same direction. from the time the car enters the highway, how long will it take the care to pass the truck?
Work:
Truck- d=60x r=60 t=x
Car- d= 71(x-7/60) r=71 t=(x-7/60)
60x=71(x-7/60)
60x=71x-497/60
60x71x= -497/60
-11x= -497/60
x= (-497/60)/-11
x= 497/660
x= 45
But i have the answer and its 38 minutes...What am i doing wrong?
Click here to see answer by jordanmariex(1)  |
Question 382246: a truck enters a highway driving 60 mph. A car enters the highway at the same place 7 minutes later and drives 71 mph in the same direction. from the time the car enters the highway, how long will it take the care to pass the truck?
Work:
Truck- d=60x r=60 t=x
Car- d= 71(x-7/60) r=71 t=(x-7/60)
60x=71(x-7/60)
60x=71x-497/60
60x71x= -497/60
-11x= -497/60
x= (-497/60)/-11
x= 497/660
x= 45
But i have the answer and its 38 minutes...What am i doing wrong?
Click here to see answer by Alan3354(31519)  |
Question 383249: I dont even know where to begin with solving this problem. Not sure of the formula. Please help
questions is:
The intensity of a radio signal from the radio station varies inversely as the square of the distance from the station. Suppose the intensity is 8000 units at a distance of 2 miles. What will the intensity be at a distance of 8 miles?
Click here to see answer by stanbon(57967) |
Question 383370: On a trip to Florida, I drove at a steady rate of 65 miles per hour. My father-in-law’s car had a horrific vibration if he drove slower than 78 miles per hour (or so he claimed). If we were traveling the same stretch of road and began at the same spot, how many hours did it take for him to be 52 miles ahead of me?
Good luck everyone who tries
Click here to see answer by richard1234(5390)  |
Question 383836: The number of miles greg hiked in the first four days of a hiking trip are shown. At this rate how many miles should he expect to hike at the end of the 5th day....Day 1 - 2miles Day 2 - 3miles Day 3 - 5miles day 4 - 8miles day 5 - __miles.
Click here to see answer by edjones(7569)  |
Question 384011: Wallace and Vernonville are 200 miles apart. A car leaves Wallace traveling towards Vernonville, and another car leaves Vernonville at the same time, traveling towards Wallace. The car leaving Wallace averages 10 miles per hour more than the other, and they meet after 1 hour and 36 minutes.
What is the average speed of the cars?
The car leaving Wallace averages ____ mph
The car leaving vernonville average ____ mph
(round the answer to the nearest mph.)
Click here to see answer by rfer(12730) |
Question 384078: If a person travels 40 mph going to city A to B, and 60 mph returning from B to A, what is the average speed of the entire trip? Explain.
I told my teacher that the average speed was 50 mph and got marked wrong. Where did I go wrong?
Click here to see answer by mananth(12270)  |
Question 384150: A truck enters a highway doing 60 mph. A car enters the highway at the same place 6 minutes later driving 67 mph in the same direction. From the time the car enters the highway, how long will it take the car to pass the truck?
Click here to see answer by rfer(12730) |
Question 384150: A truck enters a highway doing 60 mph. A car enters the highway at the same place 6 minutes later driving 67 mph in the same direction. From the time the car enters the highway, how long will it take the car to pass the truck?
Click here to see answer by Alan3354(31519)  |
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