A ballot lists ten candidates for city council, eight candidates for the school board, and five bond issues. The ballot instructs voters to choose up to four people running for city council, rank up to three candidates for the school board, and approve or reject each bond issue. How Many different ballots may be cast, if partially completed (or empty) ballots are allowed

37,612,998 ballots

Step-by-step explanation:

The choices for city council, school board, and bond issues are independent, so we apply the product rule.

For city council, each ballot represents an unordered choice

of 0, 1, 2, 3 or 4 people from a 10 person set. Thus, there are;

C(10,0) + C(10,1) + C(10,2) + C(10,3) + C(10,4) = 1 + 10 + 45 + 120 + 210 = 386

Thus,

There are 386 many ways to fill (or partially fill) that part of the ballot.

Now, For the school board, a response is a sequence of length at most 3 from an 8 person set, with no repetitions. So, there are;

C(8,0) + C(8,1) + 2C(8,2) + 3![C(8,3)] =

1 + 8 + (2x28) + (6 x 56) = 401

Finally, each bond issue may be accepted, rejected, or left blank. Thus, this part of the ballot constitutes 5 independent choices from a three element set:

Thus, there are 3^(5) = 243 many of these. The number of different ballots that may be cast is therefore ;

386 x 401 x 243 = 37612998

answer:

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

explanation:

service only with 20% tip  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

in the opening of the question the word 'service' is associated only with the pretax value.

the closing part of the question asks: how much did she pay for the  

service

−−−−−−  

so technically the answer is  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

however, the intention of the question provider may have been that your answer is to be  

$

87.12

(

1

+

8

100

)

=

$

94.09

to 2 decimal places.

'

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

tony b

mar 21, 2017

answer:

trying to explain it another way

explanation:

service charge  

.

→

$

72.60

20% tip  

20

100

×

$

72.60

=

$

14.52

−−−−−−  

←

add

$

87.12

tax  

8

100

×

$

87.12

=

$

6.97

−−−−−  

←

add

$

94.09

related questions