The amount of time it takes Heather to cook dinner is directly proportional to the number of ingredients involved. If it takes her t minutes to cook dinner when there are n ingredients involved how many ingredients are involved if it takes her 30 minutes to cook dinner?

A) 30tn

B) 30n/t

C) 30t/n

D) n/t

E)t/n

macabresubwoofer Sep 12, 2019

#1**+4 **

You are given: t = kn

so k = t/n

30 = kn can be re-arranged to

30/k = n but remember the equation above (in red) ....substitue this value in for k

30/ (t/n) = n

30 * n/t = n

30n/t = n_{umber of ingredients}

ElectricPavlov Sep 12, 2019

#1**+4 **

Best Answer

You are given: t = kn

so k = t/n

30 = kn can be re-arranged to

30/k = n but remember the equation above (in red) ....substitue this value in for k

30/ (t/n) = n

30 * n/t = n

30n/t = n_{umber of ingredients}

ElectricPavlov Sep 12, 2019