Question

over 11.2 hours, the temperature changed -2.9 degrees each hour. what was the total temperature change? enter your answer in the box. degrees

Explanation:

Step1: Identify the values

We have the time period $t = 11.2$ hours and the rate of temperature - change per hour $r=-2.9$ degrees/hour.

Step2: Use the multiplication formula

The total temperature change $\Delta T$ is given by the product of the time - period and the rate of change per hour, i.e., $\Delta T=t\times r$.
Substitute $t = 11.2$ and $r=-2.9$ into the formula: $\Delta T=11.2\times(-2.9)$.
$11.2\times(-2.9)=-(11.2\times2.9)$.
$11.2\times2.9=(11 + 0.2)\times2.9=11\times2.9+0.2\times2.9=31.9+0.58 = 32.48$.
So, $\Delta T=-32.48$.

Answer:

$-32.48$