Answer:
455 or 680, depending
Step-by-step explanation:
If we assume the three choices are different, then there are ...
15C3 = 15·14·13/(3·2·1) = 35·13 = 455
ways to make the pizza.
___
If two or three of the topping choices can be the same, then there are an additional ...
2(15C2) +15C1 = 2·105 +15 = 225
ways to make the pizza, for a total of ...
455 + 225 = 680
different types of pizza.
__
There is a factor of 2 attached to the number of choices of 2 toppings, because you can have double anchovies and tomato, or double tomato and anchovies, for example, when your choice of two toppings is anchovies and tomato.
_____
nCk = n!/(k!(n-k)!)
Answer:
Choice #1) multiplied by 3
Answer:
0.007
Step-by-step explanation:
0's before other numbers are non-significant. Then you just round your number.
Hope that helps
Draw a cartesian graph and draw the points in , then see where c should be to get a right angled triangle
Hi there!
First we need to calculate how much the 3 T-shirts cost and subtract that from the amount she paid to find the change.
First, we multiply to find the coats of the T-shirts.
3 × 8 = 24
Now, we subtract 24 from 50.
50 - 24 = 26
So, she got $26 of change.
Hope this helps!
