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lbvjy [14]
2 years ago
8

How fast is the train going if it can travel 100 miles in 30 minutes?

Mathematics
1 answer:
DerKrebs [107]2 years ago
4 0

30 min = 30/60 hr = 0.5 hr

d = rt

100 = r*0.5

100/0.5 = r

200 = r

r = 200 mph.

We know that Rate = distance/time

(30 minutes is .5 hour)

Rate=100 mile/.5 hour

Divide and we get:

Rate=200 MPH

(Hint: MPH is Miles per Hour---Per means "for each")

Make sense?

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3 years ago
Karla has a cylindrical candy jar that is 5 inches tall and has a radius of 1.25 inches. The candy jar is 75% full. How much vol
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8 0
2 years ago
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3 0
3 years ago
A diagram of Eric pool as shown below. He plans to fill this pool to a depth of 4ft with a garden hose that flows at 80ft expone
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<span>The Volume of a Cylinder  =   </span><span>π <span>• r² • height<span>
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**************************************************************************
The volume of the pool is:
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6 0
3 years ago
Sophia pays $19.99 membership fee for an online music store. If sophia purchases n songs for $0.99 each write the expression for
Alona [7]

Answer:

The expression for the total cost is x = 19.99 + 0.99n .

Step-by-step explanation:

Let us assume that the total cost be x.

As given

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If sophia purchases n songs for $0.99 each .

Than the expression becomes

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x = 19.99 + 0.99n

Here n represented the number of songs.

4 0
3 years ago
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