As cake shop. bakes a variety of brownies the top-selling are the one with topping of chocolate chips walnuts or both a costmer enters the store the pobabilty that the cluster will pick both toppings is 0.4 what is the probability that they will pick neither the chocolate chips nor the waultnut toppings

0.3

Step-by-step explanation:

1.00, or 100%.  is the total of all probabilities

In the Venn diagram, we have the probabilities 0.2, 0.4 and 0.1;their sum will be 0.2+0.4+0.1 = 0.6+0.1 = 0.7.

We are left with 1.00-0.7 = 0.3 i.e the remaining probability of no toppings.

a

step-by-step explanation:

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".