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BigorU [14]
3 years ago
12

If a train travels 255 miles in 3 hours, how far will the train travel in 5 hours at the same rate?

Mathematics
2 answers:
marissa [1.9K]3 years ago
8 0

Answer:

425 miles

Step-by-step explanation:

If it travels for a longer time, it will cover more miles.

You can therefore treat this as direct proportion without having to find the actual speed of the train. It is enough to know that it will travel at the same speed.

255/3 = x/5

85 = x/5

x = 425

dem82 [27]3 years ago
7 0
The train will travel 425 miles
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The midpoint of AB is M(1, 1). If the coordinates of A are (3, -3), what are the coordinates of b
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Answer:

Midpoint is ( Average of x’s, Average of y’s )

1 = (x + 7)/2

2 = x + 7, x = - 5

and - 1 = (y + (-4))/2

so - 2 = y - 4 and y = 2

Pt B = (- 5, 2)

6 0
2 years ago
2. Create a linear function that has a rate of change of 3 and a solution at (6, 12).
Ksivusya [100]

Answer:

y = 3x - 6

Step-by-step explanation:

A linear function has the following format:

y = ax + b

In which a is the slope(rate of change) and b is the y-intercept, that is, the value of y when x = 0.

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This means that a = 3

So

y = 3x + b

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This means that when x = 6, y = 12. So

y = 3x + b

12 = 3*6 + b

b = -6

The linear function is:

y = 3x - 6

4 0
3 years ago
A line passes through the points (1, 8) and (0, 3). What is its equation in slope-intercept form?
Sphinxa [80]

Answer:

Step-by-step explanation:

The equation is y=mx+b.

In this case, you plug in 3 for b, because b represents the y-intercept and the y-intercept is (0,3).

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M represents the slope so your answer is:

Y=5x+3

Hope this helps!

3 0
3 years ago
A full bag of dog food weighs 512 pounds.
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Step-by-step explanation:

3 0
2 years ago
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Show all work to factor x4 – 17x2 + 16 completely.
denis23 [38]

Answer:

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Step-by-step explanation:

Given

x^{4} - 17x² + 16

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u² - 17u + 16

Consider the factors of the constant term (+ 16) which sum to give the coefficient of the u- term (- 17)

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u² - 17u + 16

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= (x - 4)(x + 4)(x - 1)(x + 1)

4 0
2 years ago
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