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2 years ago

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On January 22 in 1943, the town of Spearfish, South Dakota, set the record for the world’s fastest temperature change. At 7:30 a

.m., the temperature was `-4`°F. By 7:32 a.m., the temperature was `45`°F. By 9:00 a.m. the same day, the temperature was `54`°F. By 9:27 a.m., the temperature was `-4`°F. How many degrees did the temperature change each minute from 9:00 to 9:27? Make sure to show whether the change was positive or negative.

1 answer:

pychu [463]2 years ago

4 0

The average rate of change between from 9:00 to 9:27 is 2.15°F increase per minute

Linear equation

A linear equation is in the form:

y = mx + b

where y, x are variables, m is the rate of change (slope) and b is the y intercept.

Let y represent the temperature at x time.

By 9:00 a.m. the same day, the temperature was 54°F. By 9:27 a.m., the temperature was -4°F

m = (-4 - 54)/27 minutes = -2.15

The average rate of change between from 9:00 to 9:27 is 2.15°F decrease per minute

Find out more on Linear equation at: brainly.com/question/14323743

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3 years ago

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Fynjy0 [20]

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Step-by-step explanation:

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2 years ago

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Answer:

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Step-by-step explanation:

60 is the old value and 24 is the new value.

percent change = $\frac{new - old}{|old|}$ x 100%

so for this problem, you can substitute the values given in the formula:

percent change = $\frac{60-24}{|60|}$ x 100% = $\frac{-36}{60}$ x 100% =

-60% (decrease)

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3 years ago