What is the solution of the systems of equations y=-3x-3 and y=-0.5x+2?

This is two lines in slope intercept form and we want their intersection.  We just set the ys equal.

-3x - 3 = (-1/2)x + 2

Multiply both sides by 2 to clear the fractions,

-6x - 6 = -x + 4

-10 = 5x

x = -10/5 = -2

y = -3x - 3 = -3 (-2) - 3 = 6 - 3 = 3

Check:

y = (-1/2)x + 2 = (-1/2)(-2) + 2 = 1 + 2 = 3, good

x=-2, y=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:

50.6

step-by-step explanation: