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The solution to the given equation r+15=4r-6 is 7.

The equation is r+15=4r-6.

The solution of an equation is the set of all values that, when substituted for unknowns, make an equation true.

Here, r+15=4r-6

Transpose -6 to the other side of the equation, we get

r+15+6=4r

r+21=4r

Transpose r to the other side of the equation, we get

21=4r-r

3r=21

Transpose 3 to the other side of the equation, we get

r=7

Therefore, the solution to the given equation is 7.

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sorry this looks weird it wasn't allowing me to submit the question like normal so I had to do this

Answer:

62.5 cals that's your answer hope this helps

Answer:

$409,600

Step-by-step explanation:

since it's the power of three you multiple 8,000×8,000×8,000 then you divide it by 5

Answer: there is so picture

Step-by-step explanation: it should give you the option when you ask the question it’s the little paper clip

Answer:

8

Step-by-step explanation:8 x 9 = 72

Answer:

Step-by-step explanation:

$72 / $9 = 8 weeks

Answer:

b =9

Step-by-step explanation:

4•9=36

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Answer:

b = 9

Step-by-step explanation:

Given: 4b=36

Divide by 4: b= 36/4

Answer: b=9

Answer:

x=6

Step-by-step explanation:

Move all terms that don't contain xx to the right side and solve.

Answer:

x=6

Step-by-step explanation:

5x-2=28

Add 2 to each side

5x-2+2=28+2

5x = 30

Divide each side by 5

5x/5 = 30/5

x = 6

Answer: inverse variation

Step-by-step explanation:

The type of function that best models the table is inverse variation. The correct option is A.

Inverse variation can be described as a relationship between two variables, whereby, the product of the two variables will give a constant. It is expressed as, k = xy.

In an inverse variation, if one variable increases, the other variable decreases.

The table shows an inverse variation because as x increases, y decreases, and can be expressed as k = xy.

Therefore, the type of function that best models the table given is: A. inverse variation.

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Answer:

(x-5)/(x+1) and x cannot equal -1 because the denominator can't be zero.

Step-by-step explanation:

Factor the numerator:

(x+9)(x-5)

Factor the denominator:

(x+1)(x+9)

So you have

(x+9)(x-5)/(x+1)(x+9); see that you can cross out the (x+9) in both the numerator and denominator?

You're left with (x-5)/(x+1)

The only number that is restricted is -1, because that would make the denominator zero, which is a no no!!

Answer:

8 pushups per day

Step-by-step explanation:

40 divided by 5.

Answer: 270

Step-by-step explanation:

just keep adding 30 to the 90 6 more times.

Answer:

The answer is C

Step-by-step explanation:

5/8 = 0.625 , 65% = 0.65, 2/3 = 0.66 so

o.625 < 0.65 < 0.66 < 0.7

Answer: Symmetric Property

Explanation: The symmetric property states that x = y, then y = x.

So the symmetric property allows us to

switch the left and right sides of an equation.

Answer:

21=3×v

21÷3=v

7=v

v=7

hope that helps

Answer:

1000

Step-by-step explanation:

[tex]Volume \: of \: solid \: sphere \\ = \frac{4}{3} \pi {r}^{3} \\ \\ = \frac{4}{3} \pi ({3})^{3} \\ \\ = \frac{4}{3} \pi \times 27 \: {cm}^{3} \\ \\ diameter \: of \: one \: small \: ball \\ = 0.6 \: cm \\ \therefore \: radius \: (r) = 0.3 \: cm \\ \\ Volume \: of \: one \:small \: ball \\ = \frac{4}{3} \pi {r}^{3} \\ \\ = \frac{4}{3} \pi ({0.3})^{3} \\ \\ = \frac{4}{3} \pi \times 0.027 \: {cm}^{3} \\ \\ number \: of \: balls \\ \\ = \frac{Volume \: of \: solid \: sphere}{Volume \: of \: one \:small \: ball } \\ \\ = \frac{\frac{4}{3} \pi \times 27 \: {cm}^{3} }{\frac{4}{3} \pi \times 0.027 \: {cm}^{3} } \\ \\ = \frac{27}{0.027} \\ \\ = \frac{27000}{27} \\ \\ = 1000[/tex]

Hey there!☺

[tex]Answer:\boxed{x=\frac{-585}{2}}[/tex]

[tex]Explanation:[/tex]

[tex]\frac{2x}{9}=-65[/tex]

In our first step, we will simplify:

[tex]\frac{2}{9}x=-65[/tex]

Now we have to multiply both sides by 9/2:

[tex](\frac{9}{2})\times(\frac{2}{9}x)=(\frac{9}{2})\times(65)\\ x=\frac{-585}{2}[/tex]

x=-585/2 is your answer.

Hope this helps!☺

Answer:

-9x - y

Step-by-step explanation:

Combine like terms.  That is, combine all the x terms and then, separately, combine all the y terms.

2x - 10y + 9y - 11x   =   -9x - y (answer)

Answer:

[tex]x\geq0, y\geq0, x+y\geq20,[/tex] and [tex]8x+13y\leq300[/tex].

Step-by-step explanation:

Let x and y be the numbers of the paperback book and the hardcover book respectively.

as x and y are the counting numbers, so it will be always positive. So,

[tex]x\geq0\;\dots(i)[/tex] and

[tex]y\geq0\;\cdots(ii)[/tex]

Given that the weight of 1 paperback book=0.8 pounds and

the weight of 1 paperback book=1.3 pounds.

There are at least 20 books in each box, so

[tex]x+y\geq20\;\cdots(iii)[/tex]

As one box cannot weigh more than 30 pounds, so

[tex]0.8x+1.3y\leq30[/tex]

[tex]\Rightarrow 8x+13y\leq300\;\cdots(iv)[/tex]

Now, from the equations (i),(ii),(iii), and (iv), all the sets of constraints as

[tex]x\geq0, y\geq0, x+y\geq20,[/tex] and [tex]8x+13y\leq300[/tex].

Moreover, the sets of all the integral values of (x,y) in the shaded region are the feasible numbers of the paperback book and hardcover book.

Answer:

400 feet of fencing for her garden.

Step-by-step explanation:

Answer:

He needs $1.64 he has to pay $26.64

Step-by-step explanation:

$25 is what Edwin has

5.95 x 2 = $11.19

$2.50 x 3 = $7.50

11.19 + 7.50 + 7.95 = $26.64

Answer: 10th Percentile

Step-by-step explanation:

The percentile of a variable in a dataset is the percentage position of the variable in the dataset such that the variables before this variable are below this percentage.  

There are 20 variables in this data set and Biff scored a 65 which occupies the second and third positions on this dataset.

Picking the first position, 65 is the second variable in the data set so Biff's percentile is;

= Position on dataset/ No. of variables in data set

= 2/20

= 10%

= 10th percentile

Answer:

9

Step-by-step explanation:

each orange is around .40$ so alexandra spent $.80 more so 7+2=9.

sorry if I get it wrong.

A turtle walks 100 of a mile on a hour

Answer:

it’s 2. Because you would subtract 4x and then get -2y=-4x+5. Then, you would divide -4 and -2 and get y=2x+5.

The slope of the linear equation or line 4x - 2y = 5 if 2 after converting the line into the standard form option (D) is correct.

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

It is given that:

The equation of linear equation is:

4x – 2y = 5

As we the slope-intercept form of the line is:

y = mx + c

Convert the linear equation into the above form:

2y = 4x - 5

y = 2x - 5/2

m = 2

Thus, the slope of the linear equation or line 4x - 2y = 5 if 2 after converting the line into the standard form option (D) is correct.

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