In a microwave oven, cooking time is inversely

Chapter , Problem 11.1.54

(choose chapter or problem)

In a microwave oven, cooking time is inversely proportional to the amount of power used. It takes 6.5 minutes to heat a frozen dinner at 750 watts. (a) Write a formula for the cooking time, , as a function of power level, . (b) Fill in Table 11.4 with the cooking times needed to heat the frozen dinner at various power levels. (c) Graph the function = (). (d) If it takes 2 minutes to heat a rhubarb crumble at 250 watts, how long will it take at 500 watts? Table 11.4 Power, (watts) 250 300 500 650 Time, (mins)

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