The temperature in Mariah's town was 5.2 degrees Fahrenheit at midnight. The temperature decreased at a steady rate of 1.1 degrees Fahrenheit per hour until 7:00 a. m. From 7:00 a. m. through noon, the temperature increased by a total of 4.9 degrees Fahrenheit. What was the temperature at noon? Negative 7.4 degrees Fahrenheit Negative 2.5 degrees Fahrenheit 2.4 degrees Fahrenheit 7.4 degrees Fahrenheit

Option C

Step-by-step explanation:

Got it on the unit test in edge

2.4 degrees Fahrenheit.

Step-by-step explanation:

Ok, so midnight to 7:00 am is 7 hours. It decreases 1.1 degrees per hour. so

7 x 1.1 = 7.7. So from midnight to 7:00 am it decreased a total of 7.7 degrees. So 5.2 degrees - 7.7 degrees = - 2.5 degrees.

Now 7:00 am to noon is 5 hours. During this time it increased a total of 4.9 degrees. So - 2.5 degrees + 4.9 degrees = 2.4 degrees. So the answer it 2.4 degrees.