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
Alik [6]
3 years ago
8

A traveler traveled for 6 hours and covered a distance of 520 km. He traveled the first 260 km by car, and the rest of the way b

y train. The average speed of the car is twice the average speed of the train. What is the average speed of the train?
Mathematics
1 answer:
Shkiper50 [21]3 years ago
7 0

Answer:

57.78 km/hr

Step-by-step explanation:

Total time taken, t = 6 hours

Total distance covered, d = 520 km

Distance by car = 260

Distance by train = 520 - 260 = 260 km

Train speed = x

Car speed = 2x

Average speed speed = 3x /2

Speed = distance / time

1.5x = 520 / 6

9x = 520

x = 520 / 9

x = 57.777

Average speed of train = 57.78 km/hr

You might be interested in
PLZZZ HELP ME I WILL GIVE BRAINLY
Goryan [66]

Answer: x is for bouquets and y is for centerpieces.

Step-by-step explanation:

13x+4y=487

6x+2y=232

4 0
3 years ago
Read 2 more answers
Evaluate-3/5 - (-2/7)
stepan [7]
Exact form: 31/35
0.8857142~
5 0
3 years ago
Read 2 more answers
When do you reject the null hypothesis?
Nimfa-mama [501]

You reject the Null Hypothesis when you have a small P-Value. Here is an example! Also we never accept the null hypothesis, think of it like this if we bring someone to court you wouldn't say their innocent of a crime, you only know that if they do not get convicted of the crime they are not guilty in the eyes of the law. Same thing applies here, since there could be several answers that satisfy our assumptions made, we can not be certain that 1 of those assumptions is the REAL answer it's just AN answer.

6 0
3 years ago
Find the unknown length of x
nlexa [21]

25 is the length of x, using the 30-60-90 special triangle method

8 0
3 years ago
Ted and Alan are in a race to double their money. Ted feels he will win if he puts his $4,000 into a savings account offering 4.
siniylev [52]
Ted: 
4,000 @ 4.5% interest compounded annually

Alan:
1,000 @ 6% interest compounded annually 

Rule of 72: divide 72 by the compound annual interest rate

Ted: 72/4.5% = 16 years
Alan: 72/6% = 12 years

<span>Alan will win. It will take 12 years.</span>
8 0
3 years ago
Read 2 more answers
Other questions:
  • .3 hundredths repeating
    13·1 answer
  • Larry works 15 days for a total of 532.25 hours.How many hours did he average per day?
    8·1 answer
  • Question 8 of 10 (1 point)
    11·1 answer
  • Sam is 10 years younger than one-half the age of his aunt. Let a represent his aunt’s age. Which shows his aunt’s age written as
    5·2 answers
  • What is the inequality of the graph?
    9·1 answer
  • The mean age of 4 women in an office is 28 years old. the mean age of 4 men in an office is 30 years old. what is the mean age(n
    11·1 answer
  • Write 0.45 as a fraction in simplest form.
    5·2 answers
  • 5x5+90<br> I honestly have no idea wth this answer is . Please help meeee
    11·1 answer
  • Order the following fractions from least to greatest. <br><br> 3/8, 5/6,3/2, ½
    14·2 answers
  • Find two numbers if their ratio is 9:11 and their and their difference is 6
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!