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Paha777 [63]
3 years ago
12

The temperature fell from 0 Degrees Fahrenheit to 15 and one-half Degrees Fahrenheit below 0 in 5 and three-fourths hours. Wen t

ried to find the change in temperature per hour. Her work is shown below.
Mathematics
2 answers:
Ksju [112]3 years ago
8 0

Answer:

Step-by-step explanation:

I don't see Wen's work, but I'll show you mine!

We can create a set of coordinates for each of these sets of data, where x is the time in hours, and y is the number of degrees in Fahrenheit.

At time 0, the temp is 0: (0, 0)

5.75 hours late, the temp is -15.5: (5.75, -15.5)

We can find the change in temp per hour by using the slope formula, since slope is, after all, the rate at which something is changing.

m=\frac{-15.5-0}{5.75-0}=\frac{-15.5}{5.75}=-2.7 That is rounded to the tenths place from -2.695652174 so you can round it however you need. What the interpretation of this number is is that temp is falling at a rate of 2.7 degrees F per hour.

Marina CMI [18]3 years ago
6 0

Answer:

- 2 16/23 degrees / hr

Step-by-step explanation:

15 1/2 = 31/2

5 3/4 = 23/4

31/2 ÷ 23/4 =

31/2 ×  4/23 =  124/46 = 62/23 = 2 16/23

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6d2+8d-5=0<br><img src="https://tex.z-dn.net/?f=6d%20%20%7B%7D%5E%7B2%7D%20%20%20%2B%208d%20-%205%20%3D%200%20%5C%5C%20" id="Tex
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