The measures of the angles of a triangle are shown in the figure below. Solve for x.

X = 9

Step-by-step explanation:

Well if you add 90 and 33 together, you get 123. 180 is what all sides of the triangle is supposed to add up to so you'd subtract 123 from 180 which would give you 57.

15 plus 57 gives you 72. What's 72 divided by 8? 9.

You just have to work backwards here.

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: