The town is looking to expand a rectangular playing field that was 60 ft by 80 ft. They want to increase the total area of the field by 3200 sq ft by adding the same amount to both the length and width of the field. Which equation can be used to determine how much should be added to the length and width of the field? A (x)(x) = 3200 B (x)(x) = (60)(80) + 3200 C (60 + x)(80 + x) = 3200 D (60 + x)(80 + x) = (60)(80) + 3200

(80-2x)(60-2x) = 60(40) = 2400 ft2

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

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.