Question 30 Answer and Explanation _ACT April 2011 Form 67F Math Section

30. For a certain plant, the recommended nighttime temperature range in degrees Fahrenheit is 59° ≤ F ≤ 68°. Given the formula C = $\frac{5}{9}$ (F - 32) , where C is the temperature in degrees Celsius and F is the temperature in degrees Fahrenheit, what is the corresponding nighttime temperature range in degrees Celsius for the plant?

F. 0° ≤ C ≤ 5°

G. 5° ≤ C ≤ 10°

H. 10° ≤ C ≤ 15°

J. 15° ≤ C ≤ 20°

K. 20° ≤ C ≤ 25°

Answer and Explanation

Your Answer is

Correct Answer is J

Explanation