If the rate of the boat in still water is 22 mph, and the rate of the current of a river is x mph, what is the rate of the boat in each case? a) The boat is going upstream (that is, against the current, which slows the boat down.)
b) The boat is going downstream that is, with the current, which speeds the boat up.)
a) The rate of the boat when the boat is going upstream is
mph
b) The rate of the boat when the boat is going downstream is
mph.
Enter your answer in each of the answer boxes.
cm

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step-by-step explanation:

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.