a) Prom allows people to buy tickets for singles or couples. The
total number of people at the dance was 130. Single tickets cost
$40 and couples tickets cost $75 and there was a total of $4950
in ticket sales. How many singles and couples tickets were sold?
i)Define variables (what unknowns is being solved for)

ii)Write an equation based on each constraint/info.
total cost = cost of single tickets + cost of couple tickets
# of people = single people + couples people

iii)Solve the system above

iv) Write a sentence that answers the question.

djjdjdjdjdjdjddididdd

$s5ry MmMy^ H*ing i GgLItttch(innn%g*& th answeR$ I#s ##

Step-by-step explanation:

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!

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.