(solve each step for f(x) and g(x)) 1. Complete the table below to solve the equation 2.5x – 10.5 = 64(0.5x).
x
f(x) = 2.5x – 10.5
g(x) = 64(0.5x)

2

3

4

5

6

x=−0.35

Step-by-step explanation:

2.5x−10.5=64×0.5x

2.5x−10.5=32x

−10.5=32x−2.5x

−10.5=29.5x

− 29.5/10.5=x

−0.355932=x

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

he has 140 chickens because he has 10 times more chickens than ducks and he has 14 ducks so 14*10=140