If x and y vary inversely; and y = 2, when x = 3. Find the value of y, when x = -2.

Answer:

(1, 5 )

Step-by-step explanation:

Given the 2 equations

9x + 3y = 24 → (1)

10x - 2y = 0 → (2)

Multiplying (1) by 2 and (2) by 3 and adding the result will eliminate the y- term

18x + 6y = 48 → (3)

30x - 6y = 0 → (4)

Add (3) and (4) term by term to eliminate y

48x + 0 = 48

48x = 48 ( divide both sides by 48 )

x = 1

Substitute x = 1 into either of the 2 equations and solve for y

Substituting into (1)

9(1) + 3y = 24

9 + 3y = 24 ( subtract 9 from both sides )

3y = 15 ( divide both sides by 3 )

y = 5

solution is (1, 5 )

Answer:

The people in my life are academically supportive because they motivate me to do my work.

Something like that.

Answer:

HOPE THAT WAS TRUE

Step-by-step explanation:

[tex] - 3 + \sqrt{m + 59} = m \\ \sqrt{m + 59} = m + 3 \\ {(m + 59)}^{ \frac{1}{2} } = m + 3 \\ \frac{1}{2} log(m + 59) = log(m + 3) \\ 0.5 log(m) + 0.5 log(59) = log(m)+log(3) \\ 0.5 log(m) = 0.5 log(59) - log(3) \\ [/tex]

[tex]0.5 log(m) = 0.885 - 0.477 \\ 0.5 log(m) = 0.408 \\ log(m) = 0.816[/tex]

[tex]m = {10}^{0.816} = 6.556[/tex]

Answer:

it would be 0 or 22 grams

Step-by-step explanation:

Answer:

none of the radioactivity

Step-by-step explanation:

its kind of hard to explain but if 11 x 2=22 then by 11 days half of it will be gon within 22 there would be no radioactivity left in the radium

Answer:

y=1/2x+2

Step-by-step explanation:

hope this helped

Answer:

it's literally 10 just divide

50% of 20 is 10.

Asking for 50% of something is like asking for half, therefore your answer is 10. :)

Answer:

the slope is -1/7 hope this helps

Answer:

-9

Step-by-step explanation:

M athway. Really good site for math

Answer:

The length of the rectangle is 28 inches.

Step-by-step explanation:

We have that the width (W) of a rectangle is half of the length (L) of the rectangle:

[tex] W = \frac{1}{2}L [/tex]  (1)

Also, the perimeter is 84 inches:

[tex] P = 2W + 2L = 84 in [/tex]   (2)

By entering equation (1) into equation (2) we have:

[tex]2(\frac{1}{2}L) + 2L = 84 in[/tex]

[tex] L = \frac{84}{3} = 28 in [/tex]

Therefore, the length of the rectangle is 28 inches.

I hope it helps you!  

Answer:

vertical

adjacent

linear

Step-by-step explanation:

Answer:

a) 625,000

b) 78,125 if 0 is counted as even or 40,000 if it is not.

Step-by-step explanation:

Represent the 7 digit number by abcdefg

Position          Allowable digits          Number of allowable digits

g                      1,3,5,7,9                          5

f                       0,1,2,3,4,5,6,7,8,9          10

e                      1,3,5,7,9                          5

d                      0,1,2,3,4,5,6,7,8,9          10

c                      1,3,5,7,9                          5

b                       0,1,2,3,4,5,6,7,8,9         10

a                      1,3,5,7,9                          5

This implies that the number of 7 digit numbers with odd digits in the odd positions is

5x10x5x10x5x10x5=625000  

For part b, count 0 as an even digit.  Then rule out 1,3,5,7,9 in positions b, d, and f. This leaves 5 possible digits in all 7 locations. So the answer is

5^7=78,125    

If 0 is not counted as an even digit, then the answer is

4^3+5^4=40000

Answer:

where is the graph?

Step-by-step explanation:

Step-by-step explanation:

circumference(c)=43.96

2πr=43.96

r=43.96÷2π

radius ( r)=7

Now,

area(a)=πr^2

=3.14×49

=154

Answer:

I believe it is 90.43% rounded to the nearest hundredth.

Step-by-step explanation:

Answer:

166 per person

Step-by-step explanation:

500 divided by 3

Answer:

40.91 percent

Answer: 4 bags.

Step-by-step explanation:

50lb bag = 75sq.ft.

75*4= 300

50lb *4=200.

Answer:

Around 72.8 inches

Step-by-step explanation:

We are given the infomation that Chris is 185 centimeters tall.

There are 2.54 centimeters in an inch.

185/2.54 = 72.8346 ≈ 72.8

Chris should be around 72.8 inches.

Hope this helps.

Chris should be around 72.8 inches tall.

Here, we have,

given that,

Scott is 72 inches tall and Chris is 185 centimeters tall

We are given the information that Chris is 185 centimeters tall.

now, we know that,

There are 2.54 centimeters in an inch.

Since 1 inch = 2.54 centimeters

all we need to do is to divide 185 by 2.54

i.e. 185/2.54 = 72.8346 ≈ 72.8

The answer will be 72.8.

Chris should be around 72.8 inches.

Learn more about the unit conversion here:

brainly.com/question/14350438

#SPJ6

Answer:

B

Explanation:

the wheels are getting warmer so it would have to be thermal energy, hope this helps :)

Gravitational potential energy is transformed into motion energy ,kinetic energy and thermal energy.

We know that Gravitational potential energy is the potential energy with respect to the gravitational force. To possess gravitational potential energy, the object to be placed in a position in the gravitational field.

Potential energy of body is the energy generated by virtue of the position of the body. Whereas kinetic energy is generated by virtue of its movement.

Potential energy and kinetic energy together called as mechanical energy. The potential energy is mathematically expressed as;

p = mgh.

Here, g s gravity, h is height and m is the mass.

The gravitational potential energy can be arised in an object due the position in gravitational field. That changes with the change in position and change in height from the ground.

Hence Gravitational potential energy is transformed into motion energy (kinetic energy) and thermal energy.

To find more on potential energy, refer here:

brainly.com/question/24284560

#SPJ2

Answer:

1.12099824328 or estimated is 1

Step-by-step explanation:

Give branliest if i was right!

Answer:

2

Step-by-step explanation:

Answer:

9.523

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

38 / 10 = 3.8 so that means you only have 3 whole numbers

Answer:

Blue

Step-by-step explanation:

First, we need to find the LCD (Least common denominator)

Rewriting input as fractions if necessary:

1/10, 1/4, 1/5

For the denominators (10, 4, 5) the least common multiple (LCM) is 20.

Therefore, the least common denominator (LCD) is 20.

Now, we convert:

Red Marbles: 1/10 = 2/20

Blue Marbles: 1/4 = 5/20

Yellow Marbles: 1/5 = 4/20

As we can see, blue has the most. Now we have our answer! Good luck!

Answer:

y = 95x (or: miles = 95 x hours)

Step-by-step explanation:

I) Analyze the data:

We can see that for every hour, the train travels 95 miles.

II) Construct the equation:

Let's represent the miles as y and the hours as x.

y = 95x

Answer:

DFG

Step-by-step explanation:

It is a right triangle, and so is DEF. Thus they are similar.

Answer:

2.34

Step-by-step explanation:

9.36÷4 =2.34

you divide on 4as showen