If y varies directly with x and y=20.4 when x=6, find the value of y when x=-5?
A. Y=17
B. Y=24.48
C. Y=1.47
D. Y=3.4

Answers

Answer 1

Answer:

y=-17

Step-by-step explanation:

y=mx

20.4=m×6

20.4÷6=m

3.4=m

y=3.4×-5

y=-17

Answer 2

The value of the variable 'y' at x = 5 will be 17. Then the correct option is A.

What are ratio and proportion?

A ratio is a group of sequentially ordered numbers a and b expressed as a/b, where b is never equal to zero. When two objects are equal, a statement is said to be proportional.

If y varies directly with x. Then we have

y ∝ x

y = kx

At x = 6 and y = 20.4, then the value of the constant k is calculated as,

20.4 = k(6)

k = 20.4 / 6

k = 3.4

Then the equation is given as,

y = 3.4 x

The value of the variable 'y' at x = 5 will be calculated as,

y = 3.4 (5)

y = 17

The worth of the variable 'y' at x = 5 will be 17. Then, at that point, the right choice is A.

More about the ratio and the proportion link is given below.

https://brainly.com/question/14335762

#SPJ2


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Answers

Answer:

y=(-1/2)x-8

Step-by-step explanation:

Answer:

y=-1/2x - 8

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In which quadrant of the coordinate plane is the point (−7, −2 ) located? *
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Quadrant II
Quadrant III
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Answers

Answer:

Quadrant III

Explanation:

The positives-negatives value rule in quadrants:

Quadrant I = ( + , + )

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Step-by-step explanation:

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Step-by-step explanation:

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vamsi is X years old.his brother is 3 years elder to him. his uncle is 4 times his age and his aunt is 5 years younger than his uncle.what are the ages of vamis brother, uncle and aunt? what will be the age of his uncle 6 years from now

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Answers

Step-by-step explanation:

Vamsi is X years old

Vamsi = X

his brother is 3 years elder to him

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his uncle is 4 times his age

Uncle = 4X

his aunt is 5 years younger than his uncle

Aunt = Uncle - 5

what will be the age of his uncle 6 years from now

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Assume Vamis = 15 years

Brother = X + 3 = 15 +  3 = 18

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what will be the age of his uncle 6 years from now

Uncle = 4X + 6 = 60 + 6 = 66

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Answers

Answer:

I would use addition

Step-by-step explanation:

Since addition is the opposite of subtraction.

Answer:

Addition

Step-by-step explanation You would use addition because you can cancle out the numbers that way

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Answers

Answer:

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2, True

[tex]3.n \leqslant 2[/tex]

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Answer:

90

Step-by-step explanation:

you have to multiply A B and C and you should get 90

i think i'm right

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Answer:

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..........

.....

..

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Answer:

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Answer:

Write the points where the graphs of the equations intersect the x-axis

Step-by-step explanation:

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Step-by-step explanation:

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Answer: each ticket cost $11.75

Step-by-step explanation:

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Answers

9514 1404 393

Answer:

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Step-by-step explanation:

The number has no digits to the right of the tenths place, so the number is correctly rounded as is.

  11.8

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Answers

Answer:

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Step-by-step explanation:

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sin ∅ = h/21

sin ∅ = 7.98/21

sin ∅ = 0.38

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a. Keiko's estimate for the distance the car will roll is 85 cm. What is the percent error in Keiko's estimate? Show your work.​

Answers

Answer:

I believe it should be 5.882%

Step-by-step explanation:

This is how i got tought to do it

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Answers

Answer:

0.484 g

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Answers

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Step-by-step explanation:

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Step-by-step explanation:

4768 in standard form:

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9514 1404 393

Answer:

x = 7x = 4x = 5x = 2

Step-by-step explanation:

The general steps are ...

look at what you haverewrite the equation so the variable terms are on one side and the constant terms are on the other side of the equal sign; collect termsdivide by the coefficient of the variable

It is generally convenient to put the variable terms on the side of the equation having the largest (most positive) variable term. You do the rearranging by subtracting the terms you don't want. Any operation is performed on both sides of the equation.

__

1) 3x + 7 = 4x

We observe the largest x-term is on the right, and the only constant term is on the left. We can subtract the x-term 3x to eliminate it from the left side

  3x +7 -3x = 4x -3x

Combining like terms gives ...

  7 = x . . . . . this is the solution

__

2) x +2 +2x = x + 10

We observe x-terms and constants on both sides of the equation. First of all, we will combine like terms.

  3x +2 = x +10

The largest x-term is on the left, so we choose to subtract x (the x-term on the right)

  3x -x +2 = x -x +10

  2x +2 = 10

We don't want the constant on the left, so we subtract 2.

  2x +2 -2 = 10 -2

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Now, we divide by the coefficient of x.

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__

3) x +3x = x + x + 10

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__

4) 2x +3 + 3x = x + 11

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  4x +3 = 11 . . . . . . . . . . . subtract x

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_____

Learn to identify and combine like terms. Use addition or subtraction to eliminate terms you don't want. Use multiplication or division to eliminate coefficients you don't want. Whatever you do to one side of the equation must also be done to the other side of the equation. (In the above, we use "subtract ..." to mean "subtract ... from both sides of the equation," for example.)

Why am i wrong? Trigonometric Ratios. Real answers only!

Answers

Answer:

You may have gotten the opposite and adjacent mixed up.

[tex]\frac{24}{7}[/tex]

Step-by-step explanation:

An easy way to remember these trigonometric ratios is by using SOHCAHTOA, where:

SOH stands for-

[tex]Sine=\frac{Opposite}{Hypotenuse}[/tex]

CAH stands for-

[tex]Cosine=\frac{Adjacent}{Hypotenuse}[/tex]

TOA stands for-

[tex]Tangent=\frac{Opposite}{Adjacent}[/tex]

We are asked to find tan 74° given the right triangle. To find this, we must find the lengths of the opposite side and the adjacent side of the 74° angle. From looking at the triangle, we can see that the side opposite from the 74° angle is 24, and the adjacent is 7. So plugging it into the trigonometric ratio that we found using SOHCAHTOA, we find that:

[tex]tan74=\frac{24}{7}[/tex]

So the answer would be [tex]\frac{24}{7}[/tex]

Seeing as how you picked [tex]\frac{7}{24}[/tex] as your answer, it seems that you may have gotten the opposite and the adjacent mixed up or used [tex]tangent=\frac{adjacent}{opposite}[/tex] as your trigonometric ratio.

I hope you find my answer and explanation to be helpful. Happy studying.

Estimate the line of best fit using two points on the line.

A. y= -3/2x + 12
B. y= 3/2x + 12
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D. y= 2/3 + 12

Answers

Answer:

?

Step-by-step explanation:

Answer: c

Step-by-step explanation:

A p e x

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