Please help! Correct answers only please! You pick a card at random. Without putting the first card back, you pick a second card at random.

What is the probability of picking a prime number and then picking a prime number?

Simplify your answer and write it as a fraction or whole number.

4/16 or .25

Step-by-step explanation:

Probability of the first being prime is 2 of 4 becasue two cards are prime

You put the card back, so the probability of the second card also being prime is also 2/4

Multiply the numerators together and then the denominators together

2*2 = 4

4*4 = 16

so the probability of picking a prime number and then picking a prime number with replacement is 4/16 or .25.

Hope this helps!

a

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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