Question

The temperature in a city is currently 50℉ and is projected to decrease by 4℉ every hour during the next several hours. Let h be the number of hours. When will the temperature be below 32℉?

Answer 1

The temperature will be below 32°F after 4.5 hours.

Step-by-step explanation:

To determine when the temperature will be below 32°F, we can set up an inequality using the given information. Let h be the number of hours. The temperature decreases by 4°F every hour, so the inequality will be 50 - 4h < 32. To solve for h, subtract 50 from both sides and divide by 4: -4h < -18. Simplify by dividing both sides by -4, remembering to reverse the inequality sign: h > 4.5. Therefore, the temperature will be below 32°F after 4.5 hours.