I need help.. Hurry please!!

Answer:

So we have this equation:

r/10 + 4 = 5

FIrst, we can substract 4 in both sides

r/10 + 4 - 4 = 5 - 4

r/10  = 1

Now, we can multiply both sides per 10:

r/10 * 10 = 1 * 10

r = 10

And we know that r = 10, and that's the result of the equation.

Answer:

D.63 leaves

Step-by-step explanation:

Divide the given number of leaves by the time it took that many to fall

190/3=63.33 which rounds down to 63

Question #2

21 Miles per gallon

Divide the number of gallons by the amount of gas to get miles per gallon.

252/12=21 miles per gallon

Answer:

I think x = 7

but I'm not sure

.. :-))

Answer:

Commenalism

Step-by-step explanation:

I dont know why but people are deleting my answers for no reason

Answer:

The answer is below

Step-by-step explanation:

For a normal distributed population with a mean (μ), and a standard deviation (σ), if a sample size of n is selected from the population, the mean of the sample ([tex]\mu_x[/tex]) =  μ and the standard deviation of the sample ([tex]\sigma_x[/tex]) = [tex]\frac{\sigma }{\sqrt{n} }[/tex]

Let the normal distribution population have a standard deviation of σ. If the standard deviation is to be decreased by half, the sample size (n) needed is:

[tex]Using:\\\\\sigma_x=\frac{\sigma}{\sqrt{n} } \\\\but\ \sigma_x=\frac{\sigma}{2}\\\\Hence:\\\\ \frac{\sigma}{2}=\frac{\sigma}{\sqrt{n} }\\\\Divide\ through\ by \ \sigma\ to\ get:\\\\ \frac{1}{2}=\frac{1}{\sqrt{n} }\\\\\sqrt{n}=2\\\\square\ both\ sides:\\\\(\sqrt{n} )^2=2^2\\\\n=4\\\\[/tex]

To decrease the standard deviation of the sampling distribution by half we need a sample size of 4

Answer:

2, (x+13)/6, -7

Step-by-step explanation:

The -1 bit means do it backwards, so look the for the output of the function with the value given.

In g, when we put in 2 we get 9 out, so g^-1(9) is 2.

For the second one we need to rearrange it to get x = something.

h(x) + 13 = 6x

x = (h(x) + 13)/6

Then replace the h(x) with x and the x with h^-1(x) to get

h^-1(x) = (x + 13)/6

The last one is a trick. Note that h and h^-1 are opposites. If we do something then do the opposite of it, we haven't done anything at all! So the number stays the same.

Answer:

can u clarify bc area is 2 but 4 things is perimiter

Step-by-step explanation:

Answer:

2 2/9

Step-by-step explanation:

Answer:

Domain:  [tex](-\infty,\infty)[/tex]

Step-by-step explanation:

The domain of a function is all values of x such that f(x) exists.

In our case we have the following function:

[tex]f(x)=x^{3}-5x+3[/tex]

We know that x and f(x) are real numbers, therefore the domain will be the interval [tex](-\infty,\infty)[/tex], or in other words, the domain is all real numbers.

I hope it helps you!

Answer:

"bisect" means: angle FGH = angle HGI

(3x-3)=(4x-14)

-3+14=4x-3x

x=11

Angle FGH = (3x-3) = 30

Angle HGI = Angle FGH = 30

Angle FGI = 60

Step-by-step explanation:

i think this is right im not sure

Answer:

4,055

Step-by-step explanation:

Answer:

22 players

Step-by-step explanation:

2271.50- 918.50= 1353

1353/61.50= 22

The required estimate of the area in square inches of the stove top that does not include the area of the burners is 415 square inches.

Surface area is defined as the measure of a region or surface is called as surface area.

The best estimate of the area of the stovetop that does not include the area of the burners can be obtained by subtracting the total area of the four burners from the total area of the stovetop.

The total area of the stove top is given by the product of its length and width:

Length = 24 inches

Width = 22 inches

Area = Length × Width = 24 × 22 = 528 square inches

The area of each burner is given by the formula for the area of a circle:

= π × (diameter/2)²,
where π is approximately equal to 3.14

Since the diameter of each burner is 6 inches, the radius of each burner is 6/2 = 3 inches.

Area of one burner = Pi × (3)² = 3.14 × 9 = 28.26 square inches

The total area of the four burners is 4 × 28.26 = 113 square

The area of the stove top = 528 - 113
                                       = 415 square inches.

Thus, the required estimate of the area in square inches of the stove top that does not include the area of the burners is 415 square inches.

Learn more about the surface area here:

https://brainly.com/question/2835293

#SPJ6

Answer:

Read explain

Step-by-step explanation:

The steps taken to solve this system of equations would first be:

1. Sub 4x-2 into your first equation, 2x+5(4x-2)= 12 ->

2. Solve/simplify this equation to get x=1

3. Sub x=1 into your second equation and solve for y = 2

4. Get the solution (1,2)

Answer:

A transformation of a figure in which all of the dimensions of the figure are multiplied  If the scale factor is less than 1, the new figure is  Whenever a figure is dilated by a scale factor, the perimeter of the figure Step 3 Multiply the area of rectangle ABCD by the square of 1 A circle has an area of 32 square inches.

Step-by-step explanation:

Answer:

x < -4

Step-by-step explanation:

jgcgiiccyicitigciycoycoccoggc

Answer:

5

Step-by-step explanation:

7.5/3= 2.5

2.5 x 2 = 5

Answer:

4t - 9

Step-By-Step Explanation:

Answer:

4894

Step-by-step explanation:

I know that it is divisible by 2, because it is an even number, and also the one's digit has 4, which is divisible by 2.

hope this helps :3

Answer:

2344

Step-by-step explanation:

I know that it is divisible by 2 because the digit in the ones place

2344

is an even number so that makes it divisible by 2.

I HOPE IT HELPS!

Answer:

w<50

c≤30

6w+2c≥320

Step-by-step explanation:

W stands for the car wash, and C stands for the cakes. Naturally, it would be 7w+4c≥320 but each cake costs $2 to make and each car wash costs $1 per car. This makes the system 6w+2c≥320. They will wash less than(<) 50 cars and bake no more than(≤) 30 cakes. I hope this helped :).

To solve the problem we must know about Expressions.

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

Given to us

Earning per car wash = $7

Earning per cake  = $4

Cost of supplies per car wash = $1

Cost of cake = $2

They will wash less than 50 cars and

Bake no more than 30 cakes

They want to raise at least $320

Assumption

Let the number of cakes they sold be represented by x, and the number of car washes they did be represented by y.

Profit from Car wash

= Earning per car wash - Cost of supplies per car wash

= $7 - $1

= $6

Profit from Cake

= Earning per Cake - Cost of a cake

= $4 - $2

= $2

The system that represents profit

$320 = ($6)y + ($2)x

320 = 6y + 2x

As it is given that they will not make more than 30 cakes, therefore,

x ≤ 30

As it is given that they will wash less than 50 cars.

y < 50

Hence, the following equations can represent the system,

Learn more about Expression:

https://brainly.com/question/13947055

Answer: I think it’s 1/10

Step-by-step explanation:

Answer:

1/5

Step-by-step explanation:

3-2=1

10-5=5

hope this helps

Answer:

$64

Step-by-step explanation:

80/100=0.8

0.8x20=16

80-16=64

If 0.8 is 1% of the price, then we can multiply it by 20 and get the 16 we need to take off the price. 80-16=64, therefore the new price is $64!

the two numbers is 6 & 4

6 + 4 = 10

and 6-4 is 2

Answer:

0.254

Step-by-step explanation:

Given that:

Percentage of those having health insurance = 71%

p = 71 / 100 = 0.71

Number of adults selected at random, n = 4

Probability that 4 selected have health insurance :

p^n = 0.71^4 = 0.25411681

= 0.254

Answer:

$4.95

Step-by-step explanation:

Answer:

$1.65

Step-by-step explanation:

if you divide $0.99 bye 3 you get 33 that means 1 banana cost $0.33 and you have to multiply $0.33 by 5 your answer will be $1.65

Step-by-step explanation:

5/6b=17/8

Cross multiple

40=102b

divide through by 102

b=20/51

9514 1404 393

Answer:

  11 years, 7 months

Step-by-step explanation:

When the investment reaches its desired value, it will be 3 times the original amount. So, we are looking for the number of half-month periods (n) of compounding such that ...

  (1 +0.095/24)^n = 3

Taking logarithms, we have ...

  n·log(1.003958333...) = log(3)

  n = log(3)/log(1.009358333...) ≈ 278.09

This is 278.09/24 ≈ 11.59 years.

It will take about 11 years and 7 months for the investment to reach the desired value.

__

Additional comment

The amount will be about tzs 2,758 short after 11 years 7 months. It will exceed the desired amount after 2 more days' interest is added.

Answer:

Step-by-step explanation:

Use the Pythagorean theorem to find the length x of the third side.

x² + 6² = √90²

x² = 90-36 = 54

x = √54 = 3√6