Ask question

Ask question

All categories

3 years ago

12

Question on picture!!!!!!!!

1 answer:

Nat2105 [25]3 years ago

6 0

Answer:

1st option

Step-by-step explanation:

Given y varies inversely as x then the equation relating them is

y = $\frac{k}{x}$ ← k is the constant of variation

To find k use (3, 8 ) , that is x = 3 when y = 8 , then

8 = $\frac{k}{3}$ ( multiply both sides by 3 )

24 = k

y = $\frac{24}{x}$ ← equation of variation

You might be interested in

What is the difference of (3/4x-2/3)-(-5/6-2x)

Alex Ar [27]

This equation is also equal to 3/4x - 2/3 + 5/6 + 2x since subtracting a negative is the same as adding a positive in the long run. First, simplify the variables to get 2 3/4x - 2/3 + 5/6. -2/3 is also equal to -4/6, so -4/6 + 5/6 is 1/6. The simplified version of this expression is 2 3/4x + 1/6. Hope this helps!

8 0

3 years ago

What is the percent change of $15.60 to $11.70?

Rashid [163]

Answer:

percentage change=25% .

Step-by-step explanation:

Given : $15.60 to $11.70 .

To find: What is the percent change .

Solution: We have given that $15.60 to $11.70 .

Change = final value - initial value .

Change = $15.60 - $11.70

=$3.9

percentage change = $\frac{change}{original value}*100$

= $\frac{3.9}{15.60}*100$

= $\frac{390}{1560}*100$ .

On dividing both number by 3

percentage change= $\frac{130}{520}*100$ .

percentage change= $\frac{1}{4}*100$ .

percentage change=25% .

Therefore, percentage change=25% .

5 0

4 years ago

Read 2 more answers

Which table of ordered pairs represents a proportional relationship?

grin007 [14]

Answer:

It is the second one

Step-by-step explanation:

A proportional relationship happens when you get the same answer every time that you divide the y by the x.

(2,10) (4,20) (6,30)

10/2 = 5

20/4 = 5

30/6 = 5

That is not true for the other tables.

7 0

2 years ago

Graph this equation:<br> x - 2y = 6

Nady [450]

Answer:

The image below shows the equation x - 2y = 6 being graphed.

Hope this helps! :)

8 0

3 years ago

Once a week you babysit your neighbor’s toddler after school, usually going to a local playground. You notice that each swing on

Ira Lisetskai [31]

Answer:

3.9 units

Step-by-step explanation:

We are given that,

Time taken by each swing = 2.2 seconds

The pendulum formula is given by, $T = 2\pi \sqrt{\frac{L}{32}}$ , where T is the time taken and L is the length of the swing.

So, we have,

$2.2= 2\pi \sqrt{\frac{L}{32}}$

i.e. $\frac{2.2}{2\pi}=\sqrt{\frac{L}{32}}$

i.e. $(\frac{2.2}{2\pi})^{2}=\frac{L}{32}$

i.e. $L=32\times (\frac{2.2}{2\pi})^{2}$

i.e. $L=32\times \frac{4.84}{4 \pi^2}$

i.e. $L=32\times \frac{1.21}{\pi^2}$

i.e. $L=\frac{38.72}{9.87}$

i.e. L = 3.923 units

So, rounded to tenths, the length of the swing is 3.9 units.

8 0

3 years ago