A waffle recipe calls for different amounts of mix, depending on the number of servings. For 4 servings, Jordan needs 3 cups of mix and for 12 servings; she needs 9 cups of mix. This shows a direct variation between the number of servings (x) and the amount of mix (y). Using the formula y =kx, solve the formula for k and then give the value of k.

Question

A waffle recipe calls for different amounts of mix, depending on the number of servings. For 4 servings, Jordan needs 3 cups of mix and for 12 servings; she needs 9 cups of mix.  This shows a direct variation between the number of servings (x) and the amount of mix (y).  Using the formula y =kx, solve the formula for k and then give the value of k.

anonymous · Answer

just substitute x servings and y mix in.

3 = k 4
9 = k 12

what is k?

anonymous · Answer

is it 108

anonymous · Answer

noooooo o_O

k = 3/4
k = 9/12

anonymous · Answer

oooo

anonymous · Answer

is either 1 of them 2 my answers

anonymous · Answer

both are the same. 0.75 :P