The length of a dance floor to be replaced is 1 foot shorter than twice than width. you measured the width to be 12.25 feet. what is the area and what is the most accurate area you can report?

287.875 square feet.

Step-by-step explanation:

Let x be the width ( in feet ) of the dance floor,

∵ the length of a dance floor to be replaced is 1 foot shorter than twice than width.

So, the length of the dance floor = 2x - 1

According to the question,

x = 12.25 ft,

⇒ 2x - 1 = 2(12.25) -1 = 23.5 ft,

Thus, the area of the floor = length × width

= 23.5 × 12.25

= 287.875 square feet.

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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