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
Vanyuwa [196]
3 years ago
7

A train covers 10 Km in 2 1⁄2 hr. find The speed of the train in Km /hr is a. 4 km /h b. 50 km/h c. 20km /h d. 5 km/h

Mathematics
1 answer:
Luba_88 [7]3 years ago
5 0

Answer:

4km/h

Step-by-step explanation:

the speed is equals to distance/time

distance/time=10km/2.5h

=4kh/h

You might be interested in
The functions q and r are defined as follows
kolezko [41]

Answer:

98

Step-by-step explanation:

So we have the two functions:

g(x)=-2x-2\text{ and } r(x)=x^2-2

And we want to find the value of r(g(4)).

To do so, first find the value of g(4):

g(x)=-2x-2\\g(4)=-2(4)-2\\

Multiply:

g(4)=(-8)-2

Subtract:

g(4)=-10

Now, substitute this into r(g(4)):

r(g(4))\\=r(-10)

And substitute this value into r(x):

r(-10)=(-10)^2-2

Square:

r(-10)=100-2

Subtract:

r(-10)=98

Therefore:

r(-10)=r(g(4))=98

3 0
3 years ago
ILL GIVE BRANLIEST.. LOOK AT THE PIC
Masja [62]

Answer:

Step-by-step explanation:

no,because the percentage found in part(c)is about the same as the percentage found in part (b)

my answer is the second choice

7 0
3 years ago
Babysitting for 8 hrs and making $72.00 or babysitting for 6 hrs and making $57.00. Which is the better deal?
Sedaia [141]
Babysitting for 8 hours and making $72.00 because of a better/greater amount of money
5 0
3 years ago
Read 2 more answers
An office store pays a whole price of $120 for a laser printer and sells it for $174. What is the pecent mark up
Advocard [28]

Answer:

its by 54%

Step-by-step explanation:

because it is raising the price by making money by 54%. and that its using the calculator in any way.

8 0
2 years ago
Your professor has just collected eight different statistics exams. If these
musickatia [10]

Answer:

It would be 1/40320

8 0
3 years ago
Other questions:
  • The formula v=r2h gives the volume of a cylinder with a radius r and height h. Find the volume of cylinder with radius (x+4) cm
    5·1 answer
  • What is the solution set? −4.9x+1.3>11.1 Enter your answer in the box
    5·2 answers
  • Write the equation of the circle whose diameter has endpoints (-16, -16) and (-4, -8). *
    12·1 answer
  • The sandbox is in the shape of a right rectangular prism. The area of the base of the sandbox is 124.8 square centimeters, and i
    7·1 answer
  • Given g(x) -x + 4, solve for a when g(x) = 8.​
    9·2 answers
  • Simplify -2(3x-10)=15​
    15·2 answers
  • Write the verbal statement as an equation, using x for the variable.
    9·1 answer
  • Help please i need it
    9·1 answer
  • PLEASE HELP ASAP ! <br> Pictures are linked below thank you
    9·1 answer
  • A restaurant borrows $15,200 from a local bank for 7 months. The local bank charges simple interest at an annual rate of 4.55% f
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!