Demand function for pizzas After studying sales for several months,the owner of a pizza chain knows that the number of two-topping pizzas sold in a week(called the demand) decreases as the price increases. Specifically, her data indicate thatat a price of $14 per pizza, an average of 400 pizzas are sold per week, while at a price of$17 per pizza, an average of 250 pizzas are sold per week. Assume that the demand d is alinear function of the price p.a. Find the constants m and b in the demand function d = f(p) = mp + b. Then graph f .b. According to this model, how many pizzas (on average) are sold per week at a price of$20?
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.
Demand function for pizzas After studying sales for several months,
the owner of a pizza chain knows that the number of two-topping pizzas sold in a week
(called the demand) decreases as the price increases. Specifically, her data indicate that
at a price of $14 per pizza, an average of 400 pizzas are sold per week, while at a price of
$17 per pizza, an average of 250 pizzas are sold per week. Assume that the demand d is a
linear function of the price p.
a. Find the constants m and b in the demand function d = f(p) = mp + b. Then graph f .
b. According to this model, how many pizzas (on average) are sold per week at a price of
$20?
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