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Margarita [4]
3 years ago
9

A train leaves the station traveling west at a constant rate of 45 mph. An express train leaves the same station 1 hour later he

ading west on the same route, traveling at a constant rate of 60 mph. How many hours will the first train have been traveling when the express train catches up to it?
Mathematics
2 answers:
Dahasolnce [82]3 years ago
7 0
The train will have been traveling for 4 hours 


train A=45,90,135, 180
train B=0,60,120,180

NNADVOKAT [17]3 years ago
7 0

Answer:

I believe it would be 4 hours : )

Step-by-step explanation:

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V125BC [204]

Answer:

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5 0
3 years ago
John leaves his home. He travels 5 blocks south and three blocks west. As the crow flies, how far is John from his home?
riadik2000 [5.3K]

Answer:

5.83 blocks away from his home

Step-by-step explanation:

If he travels 5 blocks south and 3 blocks west, the distance from his house considered along with the distances travelled gives a right angled triangle whose opposite side and adjacent sides are the distances travelled north and west.

The distance from his house after moving 3 blocks west is the hypotenuse side. As such, the distance may be computed using Pythagoras' theorem. Let the distance from his house be G

G^2 = 5^2 + 3^2

G^2 = 25 + 9

= 34

G = √34

=5.83

John is 5.83 blocks away from his home

3 0
3 years ago
Bacterium that grows each hour exponentially and determine how much it grows<br> per hour.
iVinArrow [24]
2^x is the function of the exponential growth.

Hence , 2^1, 2^2/hour = 4, 2^3 = 6/hr... 2^n=2^n  at an amassing rate.

Bacteria is one great example to present the exponential growth. <span>Bacteria are single celled microorganisms. They have a simple cell structure than other organisms because they have no nucleus and no cell membrane. Their control center containing the genetic information si contained in a single loop of DNA. </span>
4 0
3 years ago
A 10 miles per hour<br> b 15 miles per hour<br> c 30 miles per hour <br> d 65 miles per hour
erik [133]
<h3>Answer: B) 15 mph</h3>

====================================================

Explanation:

The equation d = 65t means that the rate is r = 65. So Malcolm's family travels at an average rate of 65 mph. Note this is the slope of the line.

The graph has a slope of 50 because each time we go up 50, we move to the right 1. Ie, slope = rise/run = 50/1 = 50. You could use the slope formula to get the same result.

Since the graph has a slope of 50, this means Theo's family is going at an average speed of 50 mph.

Subtract the two speeds to get 65-50 = 15 mph

7 0
3 years ago
F(x) = 2x + 1<br> g(x) = x - 3
vlada-n [284]
Please wrote a answer completely

What is the main question
What we have to find
3 0
3 years ago
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