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Mumz [18]
3 years ago
6

Solve the equation for y. 5x – 7y = 10 A. y=-7/5x-7/10 B.y=7/5x 10/5 C. 5/7x-10/7 D. -5x-7

Mathematics
2 answers:
Free_Kalibri [48]3 years ago
7 0
<h2>Answer:</h2>

Option: C is the correct answer.

          y=\dfrac{5x}{7}-\dfrac{10}{7}

<h2>Step-by-step explanation:</h2>

We are given a linear equation in terms of variable x and y as:

5x-7y=10

Now, we are asked to solve the equation for y i.e. we are asked to find the value of y in terms of the variable x.

Now, we add 7y on both the sides of the equation to get:

5x=10+7y\\\\i.e.\\\\10+7y=5x

Now, we subtract 10 from both the sides of the equation to get:

7y=5x-10

Now, we divide both side of the equation by 7 to get:

y=\dfrac{5x-10}{7}\\\\\\i.e.\\\\\\y=\dfrac{5x}{7}-\dfrac{10}{7}

DanielleElmas [232]3 years ago
4 0
5x-7y=10
-7y=10-5x
y=(10-5x)/-7
y=10/-7-5x/-7
y=5x/7-10/7
hence C is correct option
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Option B. 3/4 > 2/3 is the correct answer.

Step-by-step explanation:

Lets look at the options one by one

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This inequality converts into 0.5<0.33 which is false.

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This simplifies to 0.75>0.666 which is true.

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D. -1 > 3/4​

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3 years ago
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MatroZZZ [7]

Answer:

x=2\textrm{ or } x=-\frac{4}{3}

Step-by-step explanation:

Given:

The equation is given as:

3x^{2}-2x-8=0\\3x^{2}-6x+4x-8=0\\3x(x-2)+4(x-2)=0\\(x-2)(3x+4)=0\\\\x-2=0\textrm{ or }3x+4=0\\x-2+2=0+2 \textrm{ or }3x+4-4=0-4\\x=2\textrm{ or }3x=-4\\x=2\textrm{ or}\\x=-\frac{4}{3}

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yulyashka [42]
<span>S = 2Πrh + 2Πr2
Manipulating the equation for h.
Step 1. subtract </span><span>2Πr2 on both sides.

</span>S - 2Πr2 = 2Πrh + 2Πr2 - 2Πr2
S - 2Πr2 = <span>2Πrh
</span>
Step 2 . divide <span>2Πr on both sides
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(S - 2Πr2)/2Πr = 2Πrh/<span>2Πr

</span><span>h = </span>(S - 2Πr2)/2Πr
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