2 dot plots on number lines going from 80 to 100 in increments of 2. For Deanna's Quiz Scores, there are 0 dots above 80, 82, and 84, 2 dots above 86, 3 above 88, 3 above 90, 2 above 92, 3 above 94, 2 above 96, and 0 above 98 and 100. For Amy's Quiz Scores, the are 0 dots above 80, 2 above 82, 1 above 84, 2 above 86, 1 above 88, 2 above 90, 1 above 92, 2 above 94, 3 above 96, 1 above 98, and 0 above 100. Use the dot plots to answer the questions. Deanna’s mean quiz score is approximately . Amy’s mean quiz score is approximately .

Deanna’s mean quiz score is approximately is 90.93                                    Amy’s mean quiz score is approximately is 90.27

Step-by-step explanation:

:)

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

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