Arjun's school is selling tickets to the annual talent show. On the first day of ticket sales the school sold 7 adult tickets and 9 student tickets for a total of $121. The school took in $22 on the
second day by selling 2 adult tickets and 1 student ticket. What is the price each of one adult
ticket and one student ticket?
solve by using elimination

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.

its a trick question

step-by-step explanation:

dogs love water, just turn on the hose and it will run in circles chasing the water all day : )