Answer asap
a spool of lace is 40 feet long. christina cuts sections that are each 18 inches in length from the spool.

christina must reserve one piece of the lace on the spool that measures 30 inches in length.

let x represent the number of 18-inch sections cut from the spool.

which equation models this scenario?

480−18x=30
40−18x=30
40 + 18x = 30
480 + 18x = 30

how many 18-inch sections can be cut from the spool of lace so that a section measuring 30 inches is left?

enter your answer in the box.
sections

480-18x=30                        25 18-inch sections

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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