Bruno listens to podcasts for
two and a half hours a day.
write an equation where x is
the number of days and y is
the total number of hours.
what is the constant of
proportionality? in the problem above how many hours will bruno have listens after 12 days this is last three questions i need with will mark brainiest you so much these are 2 question the top is the first second is the bottom

the constant of proportionality is 2.5

the number of hours that

Bruno would have listened after 12 days is 30

Step-by-step explanation:

Let x represent the number of days.

Let y represent the total number of hours.

Bruno listens to podcasts for

two and a half hours a day.

Let k represent the constant of

proportionality. It means that

k = y/x = 2.5/1

k = 2.5

The expression becomes

y = 2.5x

Therefore, the number of hours that

Bruno would have listened after 12 days would be

y = 12 × 2.5 = 30 hours

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

yes

step-by-step explanation: