1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tasya [4]
3 years ago
11

Two trains on opposite tracks leave the same station at the same time. One train travels at an average speed of 80 kilometres pe

r hour and the other travels at an average speed of 70 kilometres per hour. How long after they leave the station will they be 50 km apart?
Mathematics
1 answer:
GREYUIT [131]3 years ago
7 0

9514 1404 393

Answer:

  20 minutes

Step-by-step explanation:

The trains are separating at the rate of 80 +70 = 150 km/hour. The time required to be 50 km apart is then ...

  time = distance/speed = (50 km)/(150 km/h) = 1/3 h = 20 minutes

You might be interested in
How many sixteenth notes would be needed to have the same duration as 3 quarter notes? Represent this as a fraction
Serjik [45]
1 quarter note=2 eighth notes
1 eight note=2 sixteenth notes
so

1 quarter note=4 sixteenth note
so
times 3 both sides
3 quarter notes=12 sixteenth notes
3 0
3 years ago
The question= find the percent of each number
RUDIKE [14]

Answer:

78 x 160 /100

= 124.8

12 x 325/100

= 39

Step-by-step explanation:

6 0
3 years ago
Y /3 − –7 = 10 solve for y
NeX [460]

Answer:

9

Step-by-step explanation:

10+ -7

3

3 = 9/3

9

8 0
2 years ago
Define variability in math. (May have a few more questions, and will appreciate your help!!)
Naddik [55]
You can just google this, here is what popped up when I searched it so I could give an exact answer..... Variability<span> is the extent to which data points in a statistical distribution or data set diverge from the average, or mean, value as well as the extent to which these data points differ from each other. There are four commonly used measures of </span>variability<span>: range, mean, variance and standard deviation.</span>
3 0
3 years ago
Read 2 more answers
Who makes faces all day long DUE AT 8:30 PLZZZZZZ
sveta [45]

Answer:

The answer to this joke is a clockmaker.

Step-by-step explanation:

The math is just finding volume. You are asking for just the answer correct?

6 0
3 years ago
Other questions:
  • Dan has 4 over 5 cup of ice cream. How many 1 over 8-cup servings are in 4 over 5 cup of ice cream?
    7·2 answers
  • Please solve 2 for me?????
    10·1 answer
  • A rectangle is 6yards longer than it is wide. Find the dimensions of the rectangle if it’s area is 187 square yards
    7·1 answer
  • Please help if you can.
    9·2 answers
  • . On a week-day paper route, Jennifer delivers the following number of papers in one week. What is the median number of papers t
    13·1 answer
  • Ethanol fuel mixtures have "E" numbers that indicate the percentage of ethanol in the mixture by volume. For example, E10 is a m
    13·1 answer
  • ASAP!!!! HELP
    12·2 answers
  • Who ever gets this will get a brainlest
    12·2 answers
  • A number multiplied by 7 is less than 21. Which of the following expressions correctly identifies this sentence?
    15·1 answer
  • Help me asap please!! I'll give brainliest
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!