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Aeris reads the temperature of a liquid in a lab experiment. The temperature of the liquid is 7.2ºF. After 5 hours, she reads the temperature of the liquid again. The temperature of the liquid is now −1.6°F. Aeris plots the points on a number line to determine the temperature change between these two readings. How much did the temperature decrease? Enter your answer as a decimal in the box.

Answer: 8.8 (-8.8’F)Step-by-step explanation:What we know:7.2-1.6find the differenceHow to solve:Process:Write equation 7.2 – (-1.6) = ?Solution: 8.8 (-8.8’F)*Note:The temperature decreased by 8.8’F, but itincreased/changedby -8.8’F. Be careful of wording.