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Korolek [52]
3 years ago
9

A train leaves Los Angeles at 2 p.m. heading north at 50 mph. If the next train leaves three hours later and also heads north at

60 mph, at what time will the second train catch up with the first?
Mathematics
2 answers:
Svetach [21]3 years ago
7 0

Answer:

8:00 AM

Step-by-step explanation:

alphabetsam had a good step by step explaination but they got the timing wrong.

They put 8 PM instead of AM. The correct answer is 8:00 AM.

Mamont248 [21]3 years ago
5 0
Since the first train has been travelling for 3 hours, we have the following equations:
d=50t+3*50=50t+150
d=60t

We want to know when they will be equal, so set these equal to eachother:
60t=50t+150
10t=150
t=15

So 15 hours after the second train leaves, they will be at the same distance. This is at 8AM since the second train leaves at 5PM. 
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NNADVOKAT [17]

Answer:

1) x = 15

Step-by-step explanation:

We use the Pythagorean thm for these questions. Where a and b are the legs (So order doesn't matter), and where c is the hypotenuse

1)

a² + b² = c²

9² + 12² = x²

81 + 144 = x²

x² = 225

You square root each side so you can get rid of the exponent on x.

\sqrt{x^2} =\sqrt{225}

x = 15

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2 years ago
URGENT HELP NEEDED
kondor19780726 [428]
<span>"ratio of princesses to celebrities is 3:1"

The are 3 more times princesses as celebrities.

</span>"<span>The ratio of superheros to princesses is 5:4"

For each 4 princesses, there are 5 superheroes.

For 1 celebrity, there are 3 pincesses.

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The ratio of celebrities to princesses to superheroes is
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31x = 93

x = 93/31 = 3

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Answer:

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Step-by-step explanation:

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