Explanation It is given that the cooking time t is proportional to some power of the weight w. Hence the equation for the above direct proportion is given by, t = k w p ... ( 1 ) Where t denotes the cooking time, w denotes the weight and k is the constant of proportionality. It is given that 4.0 oz weight of vegetable mix is cooked in 2.5 min or 8.0 oz is cooked in 3.5 min . Therefore, the value of k is obtained by substituting the known values of weight and cooking time of the vegetable mix in the equation (1) as follows. t = k w p 2.5 = k ( 4.0 ) p k = 2.5 ( 4.0 ) p Substitute the value of the constant k and obtain the cooking time as follows. t = k w p t = 2.5 4.0 p w p ... ( 2 ) It is also given that 8

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Chapter 18.2, Problem 64E

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The time t required to cook a certain vegetable mix in a microwave oven as a function of w.

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Chapter 18.2, Problem 63E

Chapter 18, Problem 1RE

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Chapter 18 Solutions

Basic Technical Mathematics

Ch. 18.1 - Practice Exercise In a certain electric field a...Ch. 18.1 - Prob. 2PE Ch. 18.1 - Prob. 1E Ch. 18.1 - Prob. 2E Ch. 18.1 - Prob. 3E Ch. 18.1 - Prob. 4E Ch. 18.1 - Prob. 5E Ch. 18.1 - Prob. 6E Ch. 18.1 - Prob. 7E Ch. 18.1 - Prob. 8E

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The time t required to cook a certain vegetable mix in a microwave oven as a function of w .

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Chapter 18 Solutions