(^^ look at the picture above)

1. what is the value of x?

2. what is the value of y?

3. what is the value of z?

!

(whoever gives an answer with an explanation fast, gets brainliest! )

x = 81

y = 99

z = 129

Step-by-step explanation:

for x we know triangle angles add up to 180

so x + 51 + 48 = 180

x= 180 - 51 - 48 (by moving 51 and 48 to the right)

x= 81

for y it is on a straight line with x

straight lines are 180 degrees

x + y = 180

81 + y = 180 (since we know x)

y = 180 - 81 (move 81 to the right)

y = 99

for z its also on a line which is 180

z + 51 = 180

z = 180 -51

z = 129

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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