Read the instructions please.

9514 1404 393

Step-by-step explanation:

1. The equation x-y = 2/3 has no integer solutions, so is difficult to graph accurately.

 The equation 4x -3y = -33 transforms to y = 4/3x +11, which is easy enough to graph, but has a slope so similar to the first equation that the graph is difficult to scale in a useful way. (The point of intersection is off the grid for the usual scaling we might choose.)

__

2. The point of intersection is (x, y) = (-35, -35 2/3).

__

3. As mentioned in part 1, the challenge is finding a useful scale and plotting points and lines accurately. (A graphing calculator helps immensely.)

__

4. There are many ways to solve a system of linear equations. Here, "elimination" works well.

Rewrite the first equation to 3x -3y = 2. Subtract that from the second equation:

  (4x -3y) -(3x -3y) = (-33) -(2)

  x = -35

  y = -35 -2/3 = -35 2/3 . . . . . from the first equation

The exact solution is (x, y) = (-35, -35 2/3).

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

i believe the correct answer is option 4.principalities were small territories that were run by russian rulers.

which statement correctly defines principalities in northern asia in the 1200s? principalities were small territories that were run by russian rulers.

hope i could ! : )