The temperature in Toronto at noon during a winter day measured 4°C. The temperature started dropping 2° every hour. Which inequality can be used to find the number of hours, x, after which the temperature will measure below -3°C?
CLEAR SUBMIT
4−2𝑥>−3
4
-
2
x
>
-
3
−3−2𝑥>4
-
3
-
2
x
>
4
−3−2𝑥<4
-
3
-
2
x
<
4
4−2𝑥<−3
4 - 2x < -3
The correct inequality that can be used to find the number of hours, x, after which the temperature will measure below -3°C is:
4 - 2x < -3
To find the number of hours after which the temperature will measure below -3°C, we can start by setting up the inequality.
The temperature starts at 4°C and drops 2°C every hour. So, after x hours, the temperature will be: 4 - 2x°C.
We want to find the number of hours when the temperature is below -3°C. Therefore, we can set up the inequality:
4 - 2x < -3
This inequality represents the condition when the temperature is less than -3°C.
So the correct inequality is: 4 - 2x < -3.