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3 years ago

12 divided by 4y+6 = 2/7

Mathematics

2 answers:

Mila [183]3 years ago

3 0

Answer:

The correct answer is y = 9

Step-by-step explanation:

It is given that,

12/(4y + 6) = 2/7

<u>To find the value of y</u>

12/(4y + 6) = 2/7

By cross multiplying,

12 * 7 = 2 * (4y + 6 )

84 = 8y + 12

8y + 12 = 84

8y = 84 - 12

8y = 72

y = 72/8 = 9

y = 9

Therefore by solving the given expression we get the value of y = 9

Firlakuza [10]3 years ago

3 0

Answer:

y=9 is the answer.

Step-by-step explanation:

The given statement

12 divided by 4y+6 = 2/7

we have to find the value of y.

12/ 4y+6 = 2/7

By cross multipling, we get 12 ×7= 2 × (4y +6)

84 = 8y + 12

8y + 12 = 84

8y = 84 - 12

8y = 72

y = 72/ 8

y = 9 is the answer.

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$\begin{aligned}x &=\frac{6 \pm \sqrt{36-204}}{6} \\&=\frac{6 \pm \sqrt{-168}}{6} \\&=\frac{6 \pm 2 i \sqrt{42}}{6}\end{aligned}$

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$x=1+i \sqrt{\frac{14}{3}}, x=1-i \sqrt{\frac{14}{3}}$

Hence, the equation has two irrational solutions.

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