kayylexi kayylexi

19-02-2019
Chemistry

contestada

A train travels 99 km in two hours and then 72 km in two hours what is it’s average speed

Respuesta :

19-02-2019

Answer:

42.75 km/h

Step-by-step explanation:

Average speed = total distance/total time

Total distance = 99 + 72

= 171 km

Total time = 2 + 2

= 4 h

Average speed = 171/4

= 42.75 km/h

Answer Link

ACCESS MORE ACCESS MORE ACCESS MORE ACCESS MORE

Otras preguntas

x2 + y2 + 6x – 2y+3 = 0? What is the radius of a circle with the equation

What is the percent of change from 500 to 60?

What is the diagonal of a right triangle

Tammy, a high school senior, is trying to decide what to do after graduation. She has been considering the military since she was a little girl because it has b

Which number line represents the solution of 4x - 9 ≥ -21? what would the number line look like ?

A clinic offers one service that has the following annual cost and volume estimates: Variable cost per visit is $10 Annual direct fixed costs is $50,000 Allocat

How does a Free Market Economic System answer the 3 questions, What? How? and for Whom

is this parallel, perpendicular or neither y=4x + 3 and 4y + x = -1

What exactly is the loyalty program?

Velvetleaf is a particularly annoying weed in cornfields. It produces lots of seeds, and the seeds wait in the soil for years until conditions are right. How ma