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MA_775_DIABLO [31]
3 years ago
12

two trains leaves stations 320miles apart at the same time and travel toward eachother. One train travels at 110 miles per hour

while the other travels at 90miles per hour. How long will it take for the two trains to meet.
Mathematics
1 answer:
I am Lyosha [343]3 years ago
4 0

x/110 = (320-x)/90

<span> Cross multiply</span>

90x = 35200-110x

200x=35200

X = 35200/200 = 176 (distance traveled by train going 110 mph

176/110 = 1.6 hours = 1 hour and 36 minutes

 

Check: 110*1.6 = 176, 90*1.6 = 144

176+144 = 320

it will take 1.6 hours ( 1 hour 36 minutes) for the trains to meet
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Read 2 more answers
At the ritz concert tickets for adults cost $6 and tickets for students cost $4. How many of each ticket were purchased if 480 t
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Answer: the number of adult tickets is 210

The number if student tickets is 270

Step-by-step explanation:

Let x represent the number of adult tickets that were purchased.

Let y represent the number of student tickets that were purchased.

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6x + 4y = 2340 - - - - - - - -1

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y = - 540/-2 = 270

x = 480 - 270

x = 210

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