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MariettaO [177]
2 years ago
12

A man is running through a train tunnel. When he is 2 5 of the way through, he hears a train approaching the tunnel from behind

him at a speed of 60 kilometers per hour. Whether he runs ahead or he runs back, he will reach an end of the tunnel at the same time the train reaches that end. At what rate, in kilometers per hour, is he running
Mathematics
1 answer:
rjkz [21]2 years ago
3 0

Answer:

I think if he keeps running at the speed he is running about 25 mph

Step-by-step explanation:

honestly this one was very hard I do not know

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PLEASE SOLVE AND EXPLAIN !!!
lord [1]

Answer:

3.46

Step-by-step explanation:

8 0
3 years ago
the line passing through the points A (-1,3k) and B (k , 3) is parallel to the line whose equation is 2y+3x=9. write down the co
vodomira [7]

Answer:

k = 3

Step-by-step explanation:

If the line passing through the points A (-1,3k) and B (k , 3) is parallel to the line whose equation is 2y+3x=9, then their slopes are equal

For coordinate AB;

slope m1 = 3 - 3k/k-(-1)

m1 = 3-3k/k+1

For the line 2y+3x = 9

2y = -3x + 9

y = -3/2 x + 9/2

Slope m2 = -3/2

Since m1 = m2

3-3k/k+1 = -3/2

Cross multiply

2(3-3k) = -3(k+1)

Expand

6 - 6k = -3k - 3

-6k+3k = -3 - 6

-3k = -9

k = -9/-3

k = 3

Hence the value of k is 3

4 0
2 years ago
Pls help me, <br> Answer choices are :<br><br> A. 7<br> B. 30<br> C. 28<br> D. 49
WARRIOR [948]
I think 30 because I did all the equation and I got 30
4 0
2 years ago
Read 2 more answers
What is two hundred sixty-five thousandths in standard form?
Debora [2.8K]

Answer:

10^-1*2.65

Step-by-step explanation:

two hundred sixty-five thousandths= 0.265

We need a number between 1 and 10, to do the multiplication in standard form, so 0.265 turns into 2.65.

Because 2.65 becomes, smaller we use a negative power. We only move the decimal place once to the left, so we would multiply 2.65 by 10^1.

10^-1*2.65=0.265

7 0
3 years ago
The city airport and the train station are 45 miles apart. there are 9 gas stations equally spaced between the airport and train
Zielflug [23.3K]

The distance between the two adjacent gas stations will be 5 miles.

<h3>What is the difference between a ratio and a proportion?</h3>

A ratio is an ordered pair of integers a and b expressed as a/b, with b never equaling 0. A percentage is a mathematical expression in which two ratios are specified to be equal.

Distance between city airport and the train station = 45 miles

Stations equally spaced between the airport and train station=9

Let the space between two gas stations will be x;

x = 45/9

x=5 mile.

Hence, the distance between the two adjacent gas stations will be 5 miles.

To learn more about the ratio, refer to the link;

brainly.com/question/14335762

#SPJ1

6 0
2 years ago
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