Help me The value of y varies directly as x, and y is 64 when x is 8. What is the constant of variation k?

Step-by-step explanation:

Direct variation has the form y/x=k or y=kx so for y=64 and x=8 we have

64=8k, dividing each side by 8

k=8

So the constant of variation is 8

can someone answer this question plz

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: