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Firlakuza [10]
2 years ago
15

on friday morning, the temperature dropped 2 degrees per hour for four hours.write and solve an equation to find the total numbe

r of degrees d the temperature dropped on Friday morning
Mathematics
2 answers:
marusya05 [52]2 years ago
7 0
Minus 2 degrees every hour 
there are 4 hours
d=degrees dropped
- 2 x 4 = d
nikklg [1K]2 years ago
6 0

Answer: The temperature dropped 8 degrees.

Step-by-step explanation:

The initial temperature was T0, and each hour the temperature dropped by 2°, for 4 hours.

So we can write the temperature as a function of time in the next way:

T(t) = T0 - (2°/h)*t

where t is the number of hours since the temperature started to drop.

The temperature drop for four hours, so we have that the final temperature is:

T(4h) = T0 - (2*4)°= T0 - 8°

then we can calculate the difference between the final and initial temperature as:

T(4h) - T(0h) = T0 - 8° - T0 = -8°

This means that in Friday morning the temperature dropped by 8 degrees.

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kakasveta [241]

<u><em>Answer:</em></u>

168

<u><em>Explanation:</em></u>

<u>Before we begin, remember the following:</u>

+ve * +ve = +ve                     -ve * -ve = +ve

+ve * -ve = -ve                       -ve * +ve = +ve

<u>Now, for the given problem we have:</u>

(-4) * (6) * (-7)

<u>Let's take the first two terms:</u>

(-4) * (6)

Based on the above rules, the product will be negative

<u>Therefore, </u>

(-4) * (6) = -24

<u>Now, the expression became:</u>

(-24) * (-7)

Again, based on the above rule, the product here will be positive

<u>Therefore,</u>

(-24) * (-7) = 168

Hope this helps :)

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F.8=8f? What is the answer
sveta [45]

Hey there!

f.8=8f

0.8f = 8f

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0.8f - 8f = 8f - 8f

SIMPLIFY IT!

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DIVIDE -7.2 to BOTH SIDES

-7.2f/-7.2 = 0/-7.2

CANCEL out3 -7.2/-7.2 because it give you 1

KEEP: 0/-7.2 because it help solve for the f-value

NEW EQUATION: f = 0/-7.2

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Answer:

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12x - 28° and 7x + 32° are vertical angles. Vertical angles are congruent.

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12x - 28° = 7x + 32°

Collect like terms

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