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
Solnce55 [7]
4 years ago
9

A train travels 50 kilometers in 4 hours, and then 77 kilometers in 3 hours. What is its average speed?

Mathematics
1 answer:
o-na [289]4 years ago
5 0
The formula for finding speed is distance divided by time:
Speed =  Total Distance / Total Time
D1 = 50
TI = 4 
D2 = 77
T2 = 3
Average speed = D1 + D2 / TI + T2
Average Speed = 50 + 77/ 4 + 3 = 127 / 7 = 18.14.
Therefore, the average speed of the train is 18.14 m/s. 
You might be interested in
Giving Brainliest No Links
AleksAgata [21]

Answer:

3 1/4

Step-by-step explanation:

3 5/8 is too long

3 is too short so is 3 1/8

youre welcome

4 0
3 years ago
Read 2 more answers
Find d using a trigonometric ratio
Radda [10]

Answer: 38 is your answer hope this helped

plz make brainly

Step-by-step explanation:

4 0
3 years ago
PLEASE HELP! <br> click pic above for question
Wewaii [24]
The answer is C) 63 degrees
6 0
3 years ago
Read 2 more answers
Jackie wants to burn 2000 calories in one week she can burn 250 calories per hour doing aerobics. How many hours should Jackie d
Crank

Answer:

8 hours

Step-by-step explanation:

If Jackie wants to burn 2000 calories in one week but only burns 250 calories per hour

then, to solve how many hours you have to divide

2000/250= 8

therefor Jackie has to do aerobics for 8 hours that week to burn 2000 calories

8 0
3 years ago
Anyone know what the answer is for this
Anika [276]

Answer:

x^9

Step-by-step explanation:

If we have x^2 * x^3 we have (x * x) * (x * x * x) = x * x * x * x * x = x^5 which demonstrates that x^a * x^b = x^(a+b), 4 + 5 = 9

6 0
3 years ago
Read 2 more answers
Other questions:
  • Please help me, it's due tomorrow and I haven't gotten any sleep!!!! ); ); );
    7·1 answer
  • Dustin bought 9 pencils. Some of the pencils were green and cost $0.90 each. The remainder of the pencils were purple and cost $
    12·1 answer
  • a perfect is to be chosen from a class of 16 girls and 14 boys.what is the probability that the prefect is a girl​
    5·1 answer
  • Anyone know the answer??
    7·1 answer
  • Double integral of e^y/x dy dx with outer limits as 0 and 2 and inner limits as 0 and x^2 ???
    12·1 answer
  • If
    6·1 answer
  • J is the midpoint of CT<br> С<br> J<br> T<br> If:<br> CJ = 5x – 3 and<br> JT = 2x + 21<br> Find CT.
    6·1 answer
  • Solve for x<br> x-15.99 - 5806<br> A)<br> -42.07<br> B)<br> - 74.05<br> 42.07<br> D)<br> 74.05
    10·1 answer
  • Https://brainly.com/question/19893840
    13·1 answer
  • Pls help ASAP!!!!!!<br> I will cash app
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!