Select the correct answer. The user manual for Layla's phone notes that the device can be damaged when operated at temperatures

Question

Select the correct answer.
The user manual for Layla's phone notes that the device can be damaged when operated at temperatures below -20°C and above 45°C. Layla wants to know what these ranges are in degrees Fahrenheit and writes these inequalities to rewrite the relationship where F is degrees Fahrenheit.
5/9 (F-32) < -20 or 5/9 (F-32) > 45
Which statement best describes the temperature ranges Layla should avoid while using her phone?
A. Layla should avoid using her phone in temperatures below -4°F and above 113°F.
B. Layla should avoid using her phone in temperatures below 21°F and above 57°F.
C. Layla should avoid using her phone in temperatures above 21°F and below 57°F.
D. Layla should avoid using her phone in temperatures above -4°F and below 113°F.

Kunduz · Accepted Answer

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