A direct variation generally has the equation Y=KX Because Mrs. Potts makes 5 dozen ravioli in 1 hour, this will be the K value. (5 dozen/1 hr) To figure out how many she can make in 2 1/2 hrs. You use 5 dozen/1 hr as the K value and multiply that by 2 1/2 hrs (the X value). The hrs will cancel out and you will be left with the number of ravioli made in 2 1/2 hrs.
