li1ndYshelinglerina li1ndYshelinglerina

03-01-2017
Mathematics

contestada

A 100-meter-long christmas train needs 30 seconds to cross a 400-meter-long bridge. assuming the train goes at a steady speed, how fast is it?

Respuesta :

texaschic101 texaschic101

03-01-2017

length of train : 100
length of bridge : 400
distance covered by the train to cross the bridge : (100 + 400) = 500
time taken by the train to cross : 30

speed = distance / time
speed = 500/30
speed = 16.67 meters per second <===

Answer Link

Otras preguntas

A punch recipe calls for 6 quarts of juice if the recipe is tripled how many gallon of juice will be needed

Figure ABCDE≅figure FGHIJ , AB=16 , CD=10 , and EA=12 . What is the measure of HI¯¯¯¯¯ ? Enter your answer in the box.

Solve for R. THANKKSSSSSSSSSS!!!

who is william levitt

What does the following story line most clearly reveal about the narrator? A young man is lost in a large city. He sees the sordid underside of his community.

the model of diminishing marginal utility is parabolic in nature, so it has a ______ value? a)constant b)maimum c) minimum

What is √28 in simple radical form

Find the HCF of 200 and 240.

What is the perimeter of this rectangle? A. 21 in. B. 32 in. C. 42 in. D. 52 in.

What is the point of greatest emotional intensity in the story “An Episode of War” by Stephen Crane? The lieutenant returns home to his family. The lieutenant