Question

A food truck owner has determined that her maximum revenue occurs when she sells 950950950sandwiches per month. For every sandwich above or below 950950950 that she sells, her revenue decreases by \$0.10$0.10dollar sign, 0, point, 10. Which of the following could be the number of sandwiches sold in a month if the owner's revenue decreased \$45$45dollar sign, 45 from the maximum? Round the answer to the nearest whole number.

Answer 1

Maximum revenue happens when 950 sandwiches are sold. When more or less sandwiches are sold revenue decreases by a constant amount.

We are told that revenue decreased by $45. We can use this information to calculate the amount of sandwiches.

number_of_sandwiches = total_revenue_change / revenue_change_per_sandwich

number_of_sandwiches = $45 / $0.10
number_of_sandwiches = 450

Number of sold sandwiches is either 450 more or 450 less than the amount of maximum revenue.
Possible numbers of sold sandwiches are:
number = 950 - 450 = 500
number = 950 + 450 = 1400