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ira [324]
2 years ago
7

A cyclist travels 7.7 km in 30 minutes. What is his average speed in km/h?

Mathematics
1 answer:
NARA [144]2 years ago
4 0
60 min = 1 hr
30 times 2 = 60 minutes
7.7 times 2 = 15.4 km
15.4 km per hr is the answer

PLEASE MARK BRAINLIEST
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Explain how you could use the construction tool or a compass and straightedge to create a line segment that is twice as long as
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6 0
3 years ago
A line includes the points (1, 9) and (0, 5). What is it’s equation in the slope-intercept form?
scoundrel [369]

Equation is y = 4x + 5

Step-by-step explanation:

  • Step 1: Find the slope of the line by m = (y2 - y1)/(x2 - x1). Here y2 = 5, y1 = 9, x1 = 1 and x2 = 0

⇒ m = (5 - 9)/(0 - 1) = 4

  • Step 2: Find y-intercept, b. Since the line passes through (0, 5) b = 5
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5 0
3 years ago
What is the equation of the line passing through the point (-2,-1) and perpendicular to the line y = 1/2x+5?
uranmaximum [27]

Step-by-step explanation:

the slope of a line is always the factor of x.

here : 1/2

it is the ratio y/x indicating how many units y changes, when x changes a certain angina amount of units when going from one point to another.

a perpendicular slope puts x and y upside-down and flips the sign.

here : -2/1 = -2

so, the equation looks like

y = -2x + b

b is the y-intercept, and we get this by putting the x and y coordinates of the given point into this equation and solve for b :

-1 = -2×-2 + b

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the full equation is therefore

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2 years ago
What is t²=81. thanks!!
seraphim [82]

Answer:

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Step-by-step explanation:

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2 years ago
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SVEN [57.7K]
The numbers in order are
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The median is the number in the middle, which is 5.
The range is the largest number minus the smallest number, 8 - 3 = 5
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8 0
3 years ago
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