SOMEONE, PLEASE HELP QUICK Which statement about solving inequalities is true? Adding the same value to both sides of an inequality does not change the solution set. Subtracting the same value from both sides of an inequality changes the solution set. When dividing both sides of an inequality by the same positive value, it is necessary to reverse the inequality sign. When multiplying both sides of an inequality by the same negative value, it is not necessary to reverse the inequality sign. Edge edition.

Adding the same value to both sides of an inequality does not change the solution set; Option A

Step-by-step explanation:

* Adding the same value to both sides of an inequality does not change the solution set *

There are exceptions to inequalities. It is known that when dividing or multiplying negative numbers on either side of the sign, the sign is interchanged. This, keep in mind, it the only exception.

Options C and D state that: When dividing both sides of an inequality by the same positive value, it is necessary to reverse the inequality sign, and When multiplying both sides of an inequality by the same negative value, it is not necessary to reverse the inequality sign. It is convenient enough that these options dodge the rule, when multiplying/dividing by a positive value there is no change, and when multiplying/diving by a negative number the sign is reversed.

This leaves us with Options A and B. Option B states a difference made when subtracting two values, but there is no such exception. Option A states the exact opposite, that no difference is made when adding two values, which is true as the only exception is through multiplication and division of a negative value.

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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