A sight-seeing boat travels at an average speed of 19 miles per hour in the calm water of a large lake. The same boat is used for sight-seeing in a nearby river. In the river, the boat travels 3.1 miles downstream (with the current) in the same amount of time it takes to travel 1.6 miles upstream (against the current). Find the current of the river.

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

27 +27 or 27times 2=54

the diffrence is 0

8(1/6)

step-by-step explain:

49/6= 48

8 (1/6)

what are the answer choices given for this problem?