Tutors Answer Your Questions about Travel Word Problems (FREE)
Question 450568: Could you please help me on how to solve this problem; I tried to figure out the answer but it do not look right.
"John found his plane could fly at 6 times the speed of the wind. He flew 700 miles upwind in 3 hours more than it took to fly 560 miles downwind. What was the speed of the plan in still air?"
My answer: (a). (A + W)T_D = D_D
(b). (A – W)T_U = D_U
(6W + W)(T_U + 3) = 560 →
(6W + W)T_U = 700
7WT_U + 3W = 560 →
7WT_U = 700 →
WT_U = 100
7(100) + 3W = 560 →
Click here to see answer by rwm(914) |
Question 450487: two cars leave the same location at the same time and travel in the same direction along a road. The first car is traveling at a rate of 55 m/ph. the second car is traveling at a rate of 35 m/ph. how many time will pass before the cars are exactly 100 miles apart
Click here to see answer by rwm(914) |
Question 451020: A container ship left Port 20 two hours before a cruise ship. The ships traveled in opposite directions. The cruise ship traveled at 29 km/h for six hours. At this time, the ships were 374 km apart. What the the container ship's speed?
Click here to see answer by rwm(914) |
Question 451109: A distance runner ran 188 miles in 24 hours. After 8 hours he was approximately twice as far from the finish line as he was from the start. How far did he run?
I have problems with word problems along with just learning algebra.
Click here to see answer by stanbon(57347) |
Question 450741: Two cars leave an intersection at the same time. One drives east while the other drives south at 10 miles per hour faster than the other. After 2 hours, the cars are 100 miles apart. How fast is the southbound car traveling?
Click here to see answer by rwm(914) |
Question 450154: A plane travels a distance of 1000 km in 2.5 hours while flying against the wind and in 2 hours while flying with the wind. find the speed of the wind and the speed of the plane in still air.
Click here to see answer by rwm(914) |
Question 451471: A plane takes 3.5 houes to fly with the wind from new york city to miami and 4 hours to return against the wind. If the distance from NYC to Miami is 1200 miles, find the rate of the plane and the rate of the wind.
Click here to see answer by rwm(914) |
Question 451571: using the formula for a path of a projectile h = -4.9t^2 + vt + s where h is the height in meters, t is the time in seconds, v is the initial vertical velocity in meters per second and s is the initial height in meters. A rocket fired from a height of 1.3 meters at an initial vertical velocity of 45 meters per second will the rocket ever reach a height of 190 meters?
I used h = -4.9t^2 + 45t + 1.3 and have come up with .09 and 9.21 but don't understand what that means. is that the max height or ?? Thanks
Click here to see answer by htmentor(789)  |
Question 451534: Debbie leaves the house walking at a rate of 3 miles per hour. After 10 minutes, her mother realizes that Debbie has forgotten her homework and leaves the house riding a bicycle at a rate of 10 miles per hour. How many minutes after Debbie initially left the house will her mother catch up to her?
Click here to see answer by ankor@dixie-net.com(15652)  |
Question 451884: joshua rowed a boat 24 miles downstream in 4 hours. in order to make the return trip upstream in the same amount of time, he doubled his rowing rate(the rate of the boat in still water). find the rate of the current and the rate of the boat in still water on the downstream trip.
Click here to see answer by jorel1380(2518)  |
Question 451949: At a high school cross country meet, Jared jogged 8 mph for the first part of the race, then increased his speed to 12 mph for the second part. If the race was 21 mi. long and Jared finished in 2hr., how far did he jog the faster pace
Click here to see answer by pedjajov(51) |
Question 452048: When a ball is thrown, its height in feet h after t seconds is given by the equation
h=vt-16t^2
where v is the initial upwards velocity in feet per second. If v=19 feet per second, find all values of t for which h=5 feet. Do not round any intermediate steps. Round your answer to 2 decimal places.
t= ? seconds
Could there be more than one answer? If so, what are all answers?
Click here to see answer by htmentor(789)  |
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