3.. On Friday, the temperature in a town at 5:00 p.m, was 7 F, which was 13 degr

Question

3.. On Friday, the temperature in a town at 5:00 p.m, was 7 F, which was 13 degrees warmer than at 9:00 a.m. Part A What was the temperature, in degrees Fahrenheit, at 9:00 a.m. Part B On Friday, from 5:00 p.m. to 11:00 p.m., the temperature changed an average of 1.25* F each hour. What number represents the total change in temperature, in degrees Fahrenheit, from 5:00 p.m to 11:00 p.m.? 4. All members of the chess club must pay $5 each year in membership dues. The number of members m, is proportional to the amount collected in dues each year, d. Which equation shows this relationship? 5.. Which expression is equivalent to 8+7.25-6+0.5? A. 7.25+0.5-(8-6) B. (8+ 6)+(7.25+0.5) C.13+7.75 D. 14-7.25

Explanation / Answer

3.

Part A. The temperature at 9:00 AM was -6oF. ( since -6+13=7)

Part B. Average rate of change = 1.25 F / hour

Total no. of hours = 11-5 = 6 hours

Therefore, total change = 6*1.25= 7.5oF.

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