Three months ago , santos could walk 2 miles in 40 minutes. today he can walk 2 miles in 25 minutes. what is the percent change?

37.5%

Step-by-step explanation:

first work out the difference between the two numbers,

then divide the decrease by the OG number (40)

and multiply the answer by 100

the 1st digit is in the 100s n its 1

step-by-step explanation:

3,589÷18 = 199.389

so the first digit of the quotient is in the 100s n its 1

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.