Question

Camila conducted a scientific experiment. For a certain time, the temperature of a compound rose 1 1/2 degrees every 3/4 of an hour. What was the rate, in degrees per hour, that the temperature of the compound rose?

Answer 1

First, let's convert the mixed fraction given for the degrees that the compound rose into a fraction:

$1\frac{1}{2}\rightarrow\frac{2+1}{2}\rightarrow\frac{3}{2}$

Therefore, the compound's temperature rose 3/2 degees.

In order to get the rate, divide the degrees that the compound's temperature rose by the time elapsed. In this case, 3/4 hours:

$\frac{\frac{3}{2}degrees}{\frac{3}{4}hours}\Rightarrow\frac{12degrees}{6hours}\Rightarrow2\text{ degrees per hour}$

This way, the rate is 2 degrees per hour