SOLUTION: a pizza parlor offers 5 toppings on a pizza. How many different pizzas are there with two toppings?
Algebra.Com
Question 1058172: a pizza parlor offers 5 toppings on a pizza. How many different pizzas are there with two toppings?
Found 2 solutions by Boreal, ewatrrr:
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
this is 5C2, which is 5!/2!3!
That is 10.
if the toppings are ABCDE
AB
AC
AD
AE
BC
BD
BE
CD
CE
DE
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
5C2 = 5!/3!2! = 5*4/2*1 = 10 different pizzas with two toppings
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