Tutors Answer Your Questions about Travel Word Problems (FREE)
Question 610903: When air is pumped into a tire, the pressure required varies inversely as the volume of the air. If the pressure is 30lb per square inch when the volume is 140 cubic inches, find the pressure when the volume is 100 cubic inches?
Click here to see answer by Alan3354(30993)  |
Question 611365: a. Suppose two animals are in a race. Choose the two animals and calculate the speed of each animal in yards per second.
b. Decide how much of a head start (in yards) the faster animal offers the slower animal. For each animal, write an equation relating distance from the starting line to time.
c. Graph the two equations on the same coordinate plane
d. How long will it take the faster animal to overtake the slower animal? How many yards from the starting line are the animals when the faster animal overtakes the slower animal?
e. Reduce the head start by half and repeat parts c and d.
So I did a and I picked an Ostrich 45 mph and a lion 50 mph. I converted them and got 22 yards per second for the ostrich and 24.44 yards per second for the lion.
The rest of the questions have me confused. Please tell me how to do these and provide an explanation I'm really stuck on this and it's due in two days.
Click here to see answer by solver91311(16897)  |
Question 611773: A stunt diver jumps from the top of a 40-meter platform. The diver's height above the water can be modeled by the function h=-5t^2+10t+40, where h is height in meters and t is time in seconds. Find the time it takes the diver to reach the water.
Click here to see answer by Alan3354(30993)  |
Question 612166: Hi
I am a math teacher, but I do not understand the following relationship:
If two trains start at the same time from points A and B towards each other and after crossing they take a and b sec in reaching B and A respectively, then:
(A's speed) : (B's speed) = [sqrt (b) : sqrt (a)]
I can not prove the above formula.
Please help me. Thank you very much.
Click here to see answer by richwmiller(9143)  |
Question 612452: A cattle train left Miami and traveled toward
New York. 14 hours later a diesel train left
traveling at 45 km/h in an effort to catch up
to the cattle train. After traveling for four
hours the diesel train finally caught up.
What was the cattle train's average speed?
Click here to see answer by ewatrrr(10682)  |
Question 612513: Two rockets having the same acceleration start from rest, but rocket A travels for twice as much time as rocket B. If rocket A goes a distance of 310 km, how far will rocket B go? If rocket A reaches a speed of 370 m/s, what speed will rocket B reach?
Click here to see answer by solver91311(16897)  |
Question 612588: a bridge in a state is 450 feet long. phil and heim started walking across the bridge at the same time. heim's speed was 2 feet per minute faster then phil's. if heim finished walking across the brdige 2.5 minutes before phil, find phil's average speed in feet per minute.
Phil's average speed is ___ feet per minute
Click here to see answer by mananth(12270)  |
Question 612703: Car A leaves Santa Barbara at noon traveling south toward Los Angeles at 70 mph. At 1pm car B leaves Los Angeles traveling north toward Santa Barbara at 90 mph. The distance between the cars at noon was 100 miles. If car B does not get pulled over, how many minutes after car B leaves will they pass each other?
Click here to see answer by ankor@dixie-net.com(15659)  |
Question 612728: A plane X starts at A and flies to B which is a point 900 Km north and 1200 Km west of A. A plane Y starts at C which is 600 Km west of A and flies north. Draw a diagram of this information on a piece of scratch paper.
(a) Where do the flight paths cross?
Km north of A and Km west of A.
(b) Let plane X travel 500Km/hr, then how fast must plane Y fly to crash into plane X assuming that they take off at the same time?
Km/hr
Click here to see answer by ankor@dixie-net.com(15659)  |
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