How many ways are there to choose 6 coins from a piggy bank containing 100 identical pennies and 80 identical nickels

7 possible ways

Step-by-step explanation:

To get the ways, we look at all the possible events:

The pennies and nickels are identical so they cannot be differentiated.

f(x) = (x,y) 

where x is the number of pennies and y is the number of nickels.

These are the possible combinations:

(0,6)

(1,5)

(2,4)

(3,3)

(4,2)

(5,1)

(6,0)

Therefore 7 combinations are possible

D.) 171

Step-by-step explanation:

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