What are two ratios that are equivalent to 27: 9

The two ratios that are equivalent to 27:9 are; 1:3 and 3:9.

      To find two ratios that are equivalent to 27:9, we need to first find the factors of 27 and 9 which are;

Factors of 9; 1, 3, 9

Factors of 27; 1, 3, 9, 27

       We can see that 3 is a common factor of both 9 and 27. Thus, let use division property of equality to divide both 9 and 27 by 3 to get;

⁹/₃ : ²⁷/₃

⇒ 3:9

This ratio can still be divide by 3 again to get;

⇒ ³/₃:⁹/₃

= 1:3

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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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