Solve the equation equation 6(z-2)+4=10

z = 3

Step-by-step explanation:

Solve for z:

6 (z - 2) + 4 = 10

6 (z - 2) = 6 z - 12:

6 z - 12 + 4 = 10

Grouping like terms, 6 z - 12 + 4 = 6 z + (4 - 12):

6 z + (4 - 12) = 10

4 - 12 = -8:

6 z + -8 = 10

Add 8 to both sides:

6 z + (8 - 8) = 8 + 10

8 - 8 = 0:

6 z = 10 + 8

10 + 8 = 18:

6 z = 18

Divide both sides of 6 z = 18 by 6:

(6 z)/6 = 18/6

6/6 = 1:

z = 18/6

The gcd of 18 and 6 is 6, so 18/6 = (6×3)/(6×1) = 6/6×3 = 3:

 z = 3

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680

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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