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san4es73 [151]
3 years ago
7

A freight train travels 260 km in the same time a passenger train travels 320 km. If the passenger train averages 15km/hour fast

er than the freight train, what is the average speed of the freight?
Mathematics
1 answer:
JulsSmile [24]3 years ago
4 0
Time = t 

<span>vf t = 260 </span>
<span>vp t = 320 </span>
<span>so </span>

<span>260/vf = 320/(vf+15) </span>

<span>320 vf = 260 vf +260(15) </span>
<span>60 vf = 390 </span>
<span>3 vf = 39 </span>
<span>vf = 13 km/hour

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

</span>
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146, 74, 38, 20, ? what would the next number be in this sequence?
Anuta_ua [19.1K]
Looking at the numbers, we can see that the differences are 72, 36, and 18. Notice that they are each factors of the next by the same constant 2.

18 * 2 = 36
36 * 2 = 72

There, it means that 18/2 will be subtracted from 20.

20 - 18/2
= 20 - 9
= 11

The next number in the sequence would be 11. Hope this helps!
3 0
3 years ago
A giant tortoise can walk about 1/10 meters per second on land. A cooter turtle can walk about 1/2 meter per second on land. How
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cross multiply
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7 0
3 years ago
The length of a rectangle is 2 cm longer than its width. if the perimeter of the rectangle is 40 cm , find its area.
rusak2 [61]

width = w

 length = w +2

perimeter = 2L + 2w

40 = 2(w+2) + 2w

40 = 2w+4 +2w

40 = 4w+4

36=4w

w=36/4 = 9

with = 9

length = 9+2 = 11


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4 0
4 years ago
8 The sum of four consecutive odd integers is 96. What are the numbers?
grigory [225]

Answer:The sum of all is 21+23+25+27 = 96.

Step-by-step explanation:

5 0
3 years ago
Graph the line using a point and a slope. Write the equation of each line.
Mandarinka [93]

Answer:

y = x - 2

Step-by-step explanation:

Parallel lines have the same slope, so the line will also have a slope of 1.

Plug in the slope and given point into y = mx + b to solve for b:

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-1 = 1(1) + b

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Plug in b and the slope into y = mx + b

y = x - 2 is the equation

7 0
3 years ago
Read 2 more answers
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