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Oksanka [162]
2 years ago
7

Can anyone answer this question please 6[y-2]/7-12=2[y-7]/3

Mathematics
1 answer:
Kaylis [27]2 years ago
8 0

Answer:

y =47.5.

Step-by-step explanation:

First eliminate the fractions by multiplying through by the LCM of 7 and 3 which is 21:

21* 6[y-2]/7-21*12 = 21*2[y-7]/3

18(y - 2) - 252 = 14(y - 7)

18y -36 - 252 = 14y - 98

18y - 14y = -98 + 36 + 252

4y = 190

y = 190/4

y = 47.5.

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<h3>4^{10} <u> =1048576 ways </u> a student can answer the questions on the test if the student answers every question.</h3>

Step-by-step explanation:

Given that a multiple-choice test contains 10 questions and there are 4 possible answers for each question.

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<h3>To find how many ways  a student can answer the given questions on the test if the student answers every question :</h3>

Solving this by product rule

Product rule :

<u>If one event can occur in m ways and a second event occur in n ways, the number of ways of two events can occur in sequence is then m.n</u>

From the given the event of choosing the answer of each question having 4 options is given by

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2nd event of picking the answer of the 2nd question=4 ,

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10th event of picking the answer of the 10th question=4.

It can be written as  by using the product rule

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<h3>∴ there are 1048576 ways a student can answer the questions on the test if the student answers every question.</h3>
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