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
makvit [3.9K]
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
2 answers:
crimeas [40]3 years ago
8 0
Answer: 20 minutes( 0.3333 hours) after they leave the station will they be 50 km apart, if the Two trains on opposite tracks leave the same station at the same time.

Step-by-step explanation:
One train travels at an average speed of 80 km/hr and the other travels at an average speed of 70 km/hr.
dezoksy [38]3 years ago
4 0

Answer:

1/3 hr or 20 min.

Step-by-step explanation:

Call the trains A and B

Remember d = rt

Distance train A travels is 80t

Distance train B travels is 70t

Now, 80t + 70t = 50

              150t = 50

                    t = 50/150 = 1/3 hr or 20 min.

You might be interested in
Expand the logarithmic expression
Studentka2010 [4]
The mathematical expression of the given above,
                       logb (13/74)^1/2
Distribute the exponent to both numerator and denominator.
                      logb (13^1/2 / 74^1/2)
To simplify, multiply the exponent to the expression and since it is division it may be expressed as difference of two logarithms.
                  (1/2)(logb 13) - (1/2)(log 74)
8 0
3 years ago
Read 2 more answers
10.3 = 0.6y How do I find the answer to this on please
Alex73 [517]
To solve for y, you want to have all unknowns on one side and knowns on the other. to do this, we can divide both sides by 0.6 so that the knows are on the second side and y on the other. then, we can simplify to solve for y
3 0
3 years ago
In your own words what would the steps be to solve by elimination.
Tanya [424]

Answer:

Enter the equations.

Multiply each equation by a number to get the lowest common multiple for one of the variables.

Add or subtract the two equations to eliminate that variable .

Substitute that variable into one of the equations and solve for the other variable.

7 0
2 years ago
From the observation deck of a skyscraper, Isabella measures a 67
Ivenika [448]

Answer:

1941.2  feet

Step-by-step explanation:

\frac{824}{tan\left(23\right)}

8 0
3 years ago
Juanita will work for 4 7/8 hours at her job on Saturday. if she also volunteers for 2 1/3 hours at the hospital, how many hours
zheka24 [161]

Answer:

I think it's D...maybe

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • a croquet ball weighs 460 grams. together a golf ball and a croquet ball weigh the same as 11 golf balls.how much does 1 golf ba
    9·2 answers
  • . A contractor is cutting wood to brace the side of a
    8·1 answer
  • I NEED HELP ASAP PLS DO STEP BY STEP WILL GIVE BRAINLIEST!!!!!!!!!!!!!
    9·1 answer
  • Pls helppppppp!!!!!!!
    6·1 answer
  • Which equation matches the graph?<br> у<br> 4<br> 2<br> х<br> 4<br> 12<br> o<br> 2<br> 4<br> -21
    10·2 answers
  • READ No link or bot and answer the question I give Brainliest to the best answer
    11·1 answer
  • Solve for x in the triangle
    13·1 answer
  • Х2 + 2x, 3х + 5, x2 + 1, 6x - 4
    11·1 answer
  • Betty's bedroom is 18ft
    13·1 answer
  • Question is the PNG file.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!