Unit 7: 10 alg

a number generator was used to simulate the percentage of people in a town who belong to the community fitness center. the process simulates randomly selecting 100 people from the town and was repeated 20 times. the percentage of people who belong to the community fitness center in the town is shown in the dot plot.

which statement is true about the population of the town?

most likely, 50% to 60% of the town belongs to the fitness center.

most likely 70% to 85% of the town belongs to the fitness center.

most likely, 40% to 50% of the town does not belong to the fitness center.

most likely, 80% to 90% of the town belongs to the fitness center.

The  correct Answer was:

Most likely 70% to 85% of the town belongs to the fitness center.

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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