2017 December(A10) Math Question 21

Perimeter, Area, Volume

- General Sequences

21. On Friday, the temperature at 8:00 a.m. was 49°F and rose at a constant rate of °F per hour until noon. A cold front passed through at noon, and the temperature then fell at a constant rate of 1°F per hour. The temperature first fell below 49°F between:

Choice C

You are not logged in

Log In | Sign Upand pay $59 now