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fomenos
3 years ago
6

If y varies inversely with x and y is 10 when x is 5, then what is y when x is 2?

Mathematics
1 answer:
Jobisdone [24]3 years ago
6 0

9514 1404 393

Answer:

  25

Step-by-step explanation:

Inverse variation means ...

  y = k/x

For the given values, we can find k to be ...

  k = xy = (5)(10) = 50

Then for x=2, we have ...

  y = 50/x

  y = 50/2

  y = 25 . . . when x=2

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The amount that Susan charges per hour for babysitting is directly proportional to the number of children she is watching. She c
victus00 [196]

Answer:

$7.50

Step-by-step explanation:

I had the same question and I put this answer and got it correct.

7 0
3 years ago
Read 2 more answers
Can anyone someone please help me:((
Masteriza [31]

Answer:

Therefore, the standard for will be:

y=\frac{1}{4}x^{2}-x-4

Step-by-step explanation:

The equation of a parabola written as vertical axes is given by:

(x-h)^{2}=4p(y-k) (1)

The vertex of the parabola (h,k) is (2,-5).

The focus (h,k+p) is (2,-4)

Then we can find p knowing that:

h = 2

k = -5

k + p = -4 then p = -4+5 = 1

Putting all these values in equation (1) we will find the equation of the parabola:

(x-2)^{2}=4(1)(y-(-5))

(x-2)^{2}=4(y+5) (2)

Now, we need to find the standard form of the equation of the parabola.

Let's recall that standard form is:

y=ax^{2}+bx+c  

We just need to work out equation (2) to convert it to the standard form.

(x-2)^{2}=4(y+5)

x^{2}-4x+4=4(y+5)

\frac{1}{4}x^{2}-x+1=y+5

Therefore, the standard for will be:

y=\frac{1}{4}x^{2}-x-4

I hope it helps you!

 

6 0
3 years ago
Which sign makes the statement true?<br><br><br> 63% 27/48<br><br> &gt; &lt; =
Alex Ar [27]

Answer:

>

If you divide 27 by 48 then multiply the answer by 100 you will get the percent form

7 0
3 years ago
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The function g(x) undergoes a vertical stretch of 2, a horizontal shift to the right 3 units, and a vertical shift up 1 to becom
Maksim231197 [3]

Answer:

NONE OF THE OPTIONS GIVEN

Step-by-step explanation:

F(x) = 2|x - 3| + 1 is close, but vertical bars in stead of parentheses completely changes the curve shape

I believe it should be f(x) = 2(x - 3) + 1

if g(x) = x

here are some plots to compare the possibilities. I've shifted the vertical of each to separate the blue and green lines slightly. If they were both true "1" values the lines would be colinear for x>3.

The red line has a slope of 1, stretching by a factor of 3 means the slope is now 3. The absolute value signs from the answer options makes f(x) have a sharp V shape whereas the parentheses creates a single line for all values of x as does g(x) = x.

5 0
3 years ago
What is the volume of the tissue paper in the packaging box?
nalin [4]
THe volume of the larger box is 2.1^3 times that of the ssmaller one

So Volume larger = 24 * 2.1^3 =  222.264  cm^3

Therfore volume of the tissue paper = 222.264 - 24 = 198.264 cm^3 Answer
5 0
4 years ago
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