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jekas [21]
3 years ago
12

If (a,b) is an ordered pair for x-y=5, is (b,a) also a solution?

Mathematics
1 answer:
alina1380 [7]3 years ago
5 0
The answer is no. Because solution (a,b) means x=a, y=b.and we have a-b=5.  And (b,a) would mean x=b and y=a but then x-y=b-a=-(a-b)=-5≠5. So  the pair (b,a) is not a solution.


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Answer:

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Step-by-step explanation:

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Assuming that 18 sodas are required and each costs $0.20, the total cost according to Susan is $3.60.

John suggests we divide the cost of a 12 pack of soda by the number of sodas required. Considering a 12 pack of soda costs $12 and the same amount of sodas, 18, are required, we get that each soda costs $0.66.

Looking at these answers, we see that Susan has suggested a correct method to calculate the amount of money needed to buy a number of sodas. John has suggested the amount each person would have to contribute if everyone at the party was trying to buy a 12-pack of soda; regardless of whether more or less than a 12-pack is required.

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2 years ago
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MAVERICK [17]

Answer:

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Step-by-step explanation:

Question: -3+r/3=-5

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Footnotes:

1) In step 1 when I multiplied both sides of the equation by 3, don't forget you also have to multiply -3 by 3 because it is not part of the fraction (which is how I got -9)

7 0
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Step-by-step explanation:

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Answer:

Step-by-step explanation:

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7 0
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