y varies inversely with x. y=15 when x=10, find y when x=5

Answers

Answer 1

y
=
25
Explanation:
y
=
k
x
;where
x
and
y
are variables and
k
is constant
or
5
=
k
10

or
k
=
5
(
10
)

or
k
=
50

So Equation becomes
y
=
50
x

When
x
=
2

y
=
50
2

or
y
=
25

Related Questions

1. I am looking into a fish tank. I see 5 red fish for every 2 blue fish. If there are 22 red fish,
how many blue fish can you expect?

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Answer:

11?

Step-by-step explanation:

Answer:

probaly about ten or 11 five four times is 20 and they are 22

Step-by-step explanation:

5 + 5 +5 +5=20

then you would do 2 x 4 since five is four times

2 x 4 = 8

so i would round up

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The answer is option three

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Answer:

D: SAS

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The number of cookies Natalie can bake varies directly with the time she
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Answers

We already know that 0.5 of an hour, or half of an hour, is 30 minutes. We also know that 3 dozen equals 36. With this information, we can conclude that Natalie can make 72 cookies in one hour. 72 times 5 is 360. 360 divided by 12 is 30, so, Natalie can bake 30 dozen, or 360, cookies in five hours.

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Answer:

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Step-by-step explanation:

HELP ME PLZZ
Which ratio is equal to 5 to 4

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Answers

10 is to 8 is the correct answer . Mark the brainliest pls :)

Answer:

10 to 8

Step-by-step explanation:

1) Try to simplify all of the answer choices

2) Divide all of the numbers by 2

3) Then you'll find that 10 to 8 is equal to 5 to 4

Hope this helps :)

8 more than 2 times a number is 29.

Answers

the answer is 10.5 because the equation is 2x+8=29

Answer:

X = 21/2 = 10 1/2 or 10.5

Step-by-step explanation:

2x + 8:= 29

-8. -8

2x. = 21

divde both sides by 2

x = 21/2 = 10 1/2

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Answers

ANSWER:
The answer is 35 hopefully I helped:)

Use distributive property to rewrite 1/2 (4x - 6)

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Answer:

The answer would be 2x-3

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Answer:

Step-by-step explanation: The Quadratic Formula uses the "a", "b", and "c" from "ax2 + bx + c", where "a", "b", and "c" are just numbers; they are the "numerical coefficients" of the quadratic equation they've given you to solve.

A car travels 450 miles on 20 gallons of gas.
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Answers

Answer:

675 miles

Step-by-step explanation:

450 : 2 = 225

10 gallons of gas = 225 miles

225 * 3 = 675

30 miles will get you 675 miles

which is Not equal to thr absolute value of -5?

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Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

PLEASE HELP ME!!!! TEST IN LIKE 5 MINS!!!!!!! What does it mean for a system of equations to have "one" solution?????

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Answer:

When both equations have different slopes than regardless of the y-intercept they'll intersect for certain, therefore it has exactly one solution

Step-by-step explanation:

The metal that is used to hold stained glass pieces together is called __________. a. cement c. paste b. framing d. leading

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Answer:

Paste is the answer if I remember

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АУ
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2
(-2, 0)
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(-2, - 2)
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Answer:

I need points plus I'm in middle school

Step-by-step explanation:

are real numbers closed under cube root?

Answers

Answer:

Real numbers are not closed under cube root

Step-by-step explanation:

The cube of each real number is increasing as the real numbers increases, giving a functional or one to one relationship. Therefore, the cube roots of real number have also a one to one relationship.

Given that a cube root of a number, ∛x = y therefore, y³ = x, we have that all real numbers, excluding zero, have one cube root, and two complex and conjugate roots

For the real number, 8, we have the cube roots given as follows;

∛8 = 2

Also, ∛8 = -1 + √3i and -1 - √3i

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4) -4x - 10.2
I need the answer to this question asap please.

Answers

Answer: -2.55

Explanation: First add 10.2, and then the equation becomes -4x = 10.2.

Then, you just divide by -4 from both sides of the equation, and you get x = -2.55. :]

Answer:

21 - 4x

Step-by-step explanation:

Multiply 10 and 2 to get 20.

41 - 4x - 20

Subtract 20 from 41 to get 21.

21 - 4x

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Answer:

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Step-by-step explanation:

The Dallas cowboys have lost 25% of their games, if they played 36 games how many have they lost

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Answer: They have lost 9 games

Step-by-step explanation:

25 percent is 1/4 and do 36 divided by 4=9

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Answer:

Step-by-step explanation:

A=4 so its wrong cause the original one is 10-12=-2

Find the difference 10 - ( – 25 )

Answers

There is no difference they are both negative numbers or we could say 25 is higher number then 10 but it negative

Answer:

Step-by-step explanation:

In such cases where there are two minuses, you join them and turn it into a plus sign. So therefore...

= 10 - ( -25 )

= 10 + 25

= 35

Hope it helps and mark as Brainliest if possible!!! Good Luck!!!

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Any number over 4 i think

Step-by-step explanation:

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Answer:

Step-by-step explanation:

cube!

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Answer:

its a ccube idiot

Step-by-step explanation:

the slope is 5 passing throught(-1,4)

Answers

Answer:

eqn of line

5x-y=-9

Step-by-step explanation:

Answer:

y = 5x + 9

Step-by-step explanation:

Assuming you require the equation.

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 5 , thus

y = 5x + c ← is the partial equation

To find c substitute (- 1, 4) into the partial equation

4 = - 5 + c ⇒ c = 4 + 5 = 9

y = 5x + 9 ← equation of line

x - y = 1
Convert the equation from standard form to slope-intercept form.

Answers

Answer:

y=x-1

Step-by-step explanation:

The equation is currently in standard form which is a+b=y and slope-intercept is y=mx+b where m is the slope and b is the y-intercept. To change the form we must move the terms around using Properties of Equality.

First, subtract 1 from both sides

x-y-1=1-1

x-y-1=0

Then, add y to both sides

x-y-1+y=0+y

x-1=y

So that is the equation in slope-intercept form with a slope of 1 and a y-intercept of -1.

Answer:

y=x-1

Step-by-step explanation:

It is y=x-1 because first when we do ANYTHING first. We leave the y on the left side of the equation, since the slope y=mx+b has the y always on the left side. So we subtract x from both sides and we get -y=-x+1. We are NOT DONE yet, so after this, we divide both sides by -1. Why? This is because you cannot have a negative y. Dividing both sides by -1 you finally get y=x-1. If this is trouble some to read, I will also put how to solve the problem down below. :)

Let's solve for y.

x−y=1

Step 1: Add -x to both sides.

x−y=1+−x

−x

−y=−x+1

Step 2: Divide both sides by -1.

−y/ −1 = −x+1 /−1

y=x−1

Answer:

y=x−1

3x +5y How do I calculate this?

Answers

Answer:

well since 3x+5y cannot be added because they are not the same exponent or letter its just 3x+5y.

Step-by-step explanation:

hope this helps, and im sorry if its wrong

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