A$900 set of new tires cost $742.50 after a coupon is applied what percentage off is the coupon

82.5%

Step-by-step explanation:

742.50/900

0.825 (100)=82.5%

i use my brain for prombles like this maybe you could try it

step-by-step explanation:

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.