Bryan is cooking cupcakes for a bake sale at his club. the recipe calls for 12 cups of flour. he has already put 3 cups of flour in the mixing bowl. how many more cups does he need to put in? write an equation to represent this problem. then solve.

Bryan needs 9 cups more.

Step-by-step explanation:

Bryan is cooking cupcakes for a bake sale at his club. The recipe calls for 12 cups of flour.

Number of cups of flour, he already has = 3

Lets say he needs x cups more.

So, equation forms =

=>

x = 9

Hence, Bryan needs 9 cups more.

step-by-step explanation:

107 units

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0