Solve for x. x + 3.17 = 12.08 a) −15.25 b) −8.91 c) 8.91 d) 15.25

x + 3.17 = 12.08

subtract 3.17 from both sides

x + 3.17 - 3.17 = 12.08 - 3.17

x = 8.91

answer

C)8.91

.

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: