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sergeinik [125]
3 years ago
15

Solving system of equations using elimination 3x-3y=-6 , -5x+6y=12

Mathematics
1 answer:
suter [353]3 years ago
3 0

Answer:

x=0, y=2

Step-by-step explanation:

Please see attached picture for full solution.

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Explanation:

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Answer:

there are 70 possible choices for the four locations to apply the new ointment

Step-by-step explanation:

Since we have a total of 8 locations ( 4 to the new ointment and 4 to the control) ,  each one can be chosen and since the order of the locations that are chosen for the new ointment is not relevant  , then we know that the number of choices is given by the number of combinations of 4 elements in 8

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therefore

number of combinations = 8*7*6*5/(4*3*2*1 ) = 8!/((8-4)!*4!) = 70 possible combinations

thus there are 70 possible choices for the four locations to apply the new ointment

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Step-by-step explanation:

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