On a canoe trip, Rita paddled upstream (against the current) at an average speed of 2mi/h relative to the riverbank. On the return trip downstream (with the current), her average speed was 3 mi/h. Find Rita's paddling sp eed in still water and the speed of the river's current.

Paddling speed = 2.5mi/h

speed of current = 0.5mi/h

Step-by-step explanation:

Given that :

Paddling upstream against current (paddling speed - speed of current)

Let paddling speed be, x ; current speed = c

x - c = 2mi/h - - - (1)

Return downstream (paddling speed + speed of current)

x + c = 3mi/h - - - - (2)

Add (1) and (2)

2x = 5

x = 5/2 = 2.5

Paddling speed = x = 2.5mi/h

Speed of current :

From;

x + c = 3

2.5 + c = 3

c = 3 - 2.5

c = 0.5

c = speed of current = 0.5mi/h

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation: