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alexdok [17]
3 years ago
6

Given m || n, find the value of x and y. m(7x+13) n(3y-17) (9x-19)

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
4 0

Answer:

9x - 19 = 7x + 13 \\ 2x = 32 \\ x = 16 \\ 3y - 17 + 9x - 19 = 180 \\ 9x + 3y = 180 + 17 + 19 \\ 9x + 3y = 216 \\ 3y = 216 - 144 = 72 \\ y =  \frac{72}{3}  = 24

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Step-by-step explanation:

<u><em>Step(i)</em></u>:-

Given mean of the Population = 500

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Given  X = 600

Z = \frac{x-mean}{S.D} = \frac{600-500}{50} = \frac{100}{50} =2

<u><em>Step(ii)</em></u>:-

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<u><em>Final answer</em></u>:-

The probability that the candidate score is 600 or greater

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Is the x2 supposed to be squared?
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