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ss7ja [257]
2 years ago
9

What is the speed in m/s of a car that travels 30 km in 20 m?

Mathematics
1 answer:
Aneli [31]2 years ago
3 0

Answer:

25m/s

Step-by-step explanation:

distance = 30km = 30× 1000m

time = 20 min = 20 × 60 = 1200sec

we know,

speed = distance/time taken

= 30000/1200

= 25m/s

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We conclude that the slope of the linear equation that passes through the points (9, 1) and (10, -1) is -2.

<h3>How to get the slope of the line that passes through the points (9, 1) and (10, - 1)?</h3>

A linear equation has the general form:

y = a*x + b

Where a is the slope of the line, and b is the y-intercept.

There is a simple equation to get the slope of a point if we know two points. For a line that passes through ( a, b) and (c, d), the equation for the slope is:

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In this case we know that our line passes through (9, 1) and (10, -1), then using the above equation, we can see that the slope is:

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