Find the value of x in each case:

x= 11°

Step-by-step explanation:

∠BEF= 180° -4x (adj. ∠s on a str. line)

∠BFE

= 180° -147° (adj. ∠s on a str. line)

= 33°

∠BEF +∠BFE +∠EBF= 180° (∠ sum of triangle)

180° -4x +33° +x= 180°

-4x +x= 180° -180° -33°

-3x= -33°

3x= 33°

Divide both sides by 3:

x= 33° ÷3

x= 11°

x= 11°

Step-by-step explanation:

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step-by-step explanation:

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: