At noon the temperature in Alaska is 10°F. If the temperature drops 5°F per hour, what will the temperature be at 7:00 PM?
The temperature at 7:00 PM will be °F.
10 - (5 * 7) = ______ F
15 degrees?
To find the temperature at 7:00 PM, we need to calculate how many hours have passed since noon and multiply that by the drop in temperature per hour.
From noon to 7:00 PM, a total of 7 hours have passed.
Given that the temperature drops 5°F per hour, we can multiply the number of hours by the drop in temperature per hour:
7 hours * 5°F/hour = 35°F
Since the temperature at noon is 10°F, and it has dropped by 35°F, we subtract the drop in temperature from the starting temperature:
10°F - 35°F = -25°F
Therefore, the temperature at 7:00 PM will be -25°F.
To determine the temperature at 7:00 PM, we need to calculate the number of hours that have elapsed since noon and then subtract the corresponding decrease in temperature.
Step 1: Determine the number of hours elapsed since noon to 7:00 PM.
Since there are 12 hours between noon and 7:00 PM, the temperature will have dropped for 12 hours.
Step 2: Calculate the decrease in temperature per hour.
The temperature is dropping 5°F per hour, so for 12 hours, the total decrease in temperature would be 5°F × 12 = 60°F.
Step 3: Subtract the total decrease in temperature from the initial temperature at noon.
The initial temperature at noon was 10°F, so when we subtract the total decrease of 60°F, we get 10°F - 60°F = -50°F.
Therefore, the temperature at 7:00 PM in Alaska would be -50°F.