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3 years ago

A rocket is launched 85 miles per hour what is the measurement in feet per second

1 answer:

galina1969 [7]3 years ago

5 0

5280 feet per mile

1hour=60mins
1min=60seconds
1hour=60*60=3600 seconds

85 miles per 1 hour

85 miles times 5280=448800 feet

1 hour=3600 seconds

85mph=448800ft/3600sec=124 and 2/3 feet per second

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3 years ago

Does the table show a direct proportional relationship? If so, what is the constant of proportionality?

lesantik [10]

Answer:

C. Yes, 3.5.

Step-by-step explanation:

If there is a relationship of direct proportionality for every ordered pair of the table, then the constant of proportionality must the same for every ordered pair. The constant of proportionality ( $k$ ) is described by the following expression:

$k = \frac{y}{x}$ (1)

Where:

$x$ - Input.

$y$ - Output.

If we know that $(x_{1}, y_{1}) = (13, 45.5)$ , $(x_{2}, y_{2}) = (14, 49)$ and $(x_{3}, y_{3}) = (15, 52.5)$ , then the constants of proportionalities of each ordered pair are, respectively:

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$k_{2} = \frac{7}{2}$

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4 years ago

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