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IRINA_888 [86]
3 years ago
6

The temperature falls from 0 degrees to -12 1/4 degrees in 3 1/2 hours. Which expression finds the change in temperature per hou

r?
Mathematics
2 answers:
s2008m [1.1K]3 years ago
5 0
<span>The temperature falls from 0 degrees to -12 1/4 degrees in 3 1/2
</span>
The <span>expression to find the change in temperature per hour
</span>
<span>\frac{0-(-12 \frac{1}{4})}{3 \frac{1}{2}}</span>

So, the change in temperature = \frac{0-(-12 \frac{1}{4})}{3 \frac{1}{2}} =  \frac{12 \frac{1}{4}}{3 \frac{1}{2}} =  \frac{ \frac{49}{4}}{ \frac{7}{2}} =  \frac{49*2}{7*4}= \frac{7}{2}=3.5 degree/hour


Strike441 [17]3 years ago
3 0

Answer:

-49/4÷7/2

Step-by-step explanation:

To find the expression, first convert the mixed numbers to improper fractions. -12 1/4=-49/4 & 3½=7/2. Hence, we get the expression -49/4÷7/2, which is the answer.

Hope this helps! (I got it right on Edgen.)

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