Human blood is classified by the presence or absence of three main antigens (a, b, and rh). when a blood specimen is typed, the presence of the a and/or b antigen is indicated by listing the letter a and/or the letter b. if neither the a nor the b antigen is present, the letter o is used. the following table gives the percent of a country's population having each of the eight possible blood types in the sample space. note that the presence or absence of the rh antigen is indicated by the symbols + or −, respectively. blood types a+ a− b+ b− ab+ ab− o+ o− percent 35.9 6.3 8.5 2.5 3.2 0.8 37.4
what is the probability that a person selected at random from the population has a blood type a given that the person is rh−? (round your answer to two decimal places.)

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

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3

9987

step-by-step explanation: