Revenue Function for Electric Cars Bell Motors manufactures two models of electric cars. The demand equations giving the relationship between the unit price, p and q, and the number of cars demanded per year, x and y, of Models S1 and S p - 60,000 - 4x - 2y and a - 50,000 - 2x - 4y respectively. (a) What is the total yearly revenue function R(x, y)? R(x, y) = (b) What is the domain of R? O The set of all x and y satisfying the system of inequalities 4x - 2y s 50,000, 2x - 4y s 60,000, x 2 0, y 2 0. O The set of all x and y satisfying the system of inequalities 4x - 2y s 60,000, 2x - 4y s 50,000, x 2 0, y 20. O The set of all x and y satisfying the system of inequalities 4x + 2y s 60,000, 2x + 4y 2 50,000, x 2 0, y 2 0. O The set of all x and y satisfying the system of inequalities 4x + 2y s 50,000, 2x + 4y s 60,000, x 2 0, y 2 0. O The set of all x and y satisfying the system of inequalities 4x + 2y s 60,000, 2x + 4y s 50,000, x 2 0, y 2 0. Sketch the domain R. y y y 25 000 30 000 30 000 25 000 25 000 25 000 20 000 20000- domain of R 20000 20 000- 15 000 15 000 domain of R 15 000 15 000- 10 000 10 000 10000- 10 000 5000 5000 5000 5000 domain of R domain of R 5000 1000015 000 20000 25 000 30 000 5000 10000 15000 20000 25 000 5000 10000 15000 20000 25 000 5000 10000 15 000 20000 25 000 30 000 (c) Is the point (4,000, 5,000) in the domain of R? Interpret your result. Hint: Show that x = 4,000 and y = 5,000 satisfy the system of inequalities obtained in part (b). When we substitute x - 4,000 and y - 5,000 into each of the inequalities, al vv of the inequalities are satisfied. The point (x, v) - (4,000, 5,000) I5 vv in the domain of R sketched in part (b). (d) What is the total revenue (in millions of dollars) realized by Bell Motors if it sells 4,000 Model Sis and 5,000 Model S2s?
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
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