Find the value of x.

74°

Step-by-step explanation:

60°+128°+95°=283°

The sum of all angles = 360°

360°-286°=77°

Edit : Typo

x = 77 degrees

Step-by-step explanation:

All angles of a trapezoid will add up to equal 360 degrees.

In other words: 60 + 128 + 95 + x = trapezoid

60 + 128 + 95 = 283 degrees.

360 - 283 = 77

x = 77 degrees

Check your work:

60 + 128 + 95 + 77 = 360

188 + 95 + 77 = 360

283 + 77 = 360

360 = 360

Correct

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: