Jon's closet has 3 black shirts, 8 blue shirts, 6 black pants and 7 blue pants. He wants to determine the probability of selecting a black piece of clothing or a shirt from his closet. He solves the probability this way. P(black piece of clothing or a shirt)=P(black piece of clothing)+P(shirt) = 9/24+11/24=20/24=5/6 did he solve it correctly? Please explain your reasoning.

no

so, there is no need for 9/24+11/24=20/24=5/6 because we are looking for only the black piece

Step-by-step explanation:

p(black piece of clothing or a shirt)=p(black piece of shirt)+p(black piece of clothing)

=6+3/24

=9/24

3/8 is the probability of picking a black piece of clothing or a  shirt

5.5

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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