1/3 of a number equals 12 which equation could be used to find the number

If you're looking for just an equation it would be 1/3x=12. If you need the answer as well, x=36.

Step-by-step explanation: "Of a number" means to multiply by x.

If you're looking for the solution to the equation as well, multiply both sides by 3. 12*3=36

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: