Solve for r.
4r–3r=20
r=

Answers

Answer 1

Answer:

20

Step-by-step explanation:

4r - 3r = 20

r = 20

There you go.

Answer 2

Answer:

r = 20

Step-by-step explanation:

Let's solve your equation step-by-step.

4r − 3r = 20

Step 1: Simplify both sides of the equation.

4r − 3r =20

4r + −3r =20

(4r + −3r) =20 (Combine Like Terms)

r = 20

Hope this helps


Related Questions

The soup pot is 8 inches tall with a radius of 3 inches.

What is the volume of the soup pot?

Answers

Answer:The volume of the soup pot is of 226.19 cubic inches.

Step-by-step explanation:

Format of a soup pot:

A soup pot has a cylindrical format.

Cylinder volume:

The volume of a cylinder, with radius r and height g is given by:

The soup pot is 8 inches tall with a radius of 3 inches.

This means that

What is the volume of the soup pot?

The volume of the soup pot is of 226.19 cubic inches.

(5, -2); slope =-1 please help I need answers asap

Answers

Answer:

y = - x + 3

Step-by-step explanation:

Assuming you require the equation of the line

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = - 1 , then

y = - x + c ← is the partial equation

To find c substitute (5, - 2 ) into the partial equation

- 2 = - 5 + c ⇒ c = - 2 + 5 = 3

y = - x + 3 ← equation of line

Find the absolute maximum and minimum values of the following function on the given region R. f(x,y)=5x2+5y2−10x+21​; R=(x,y): x2+y2≤4, y≥0

Answers

We first compute the partial derivatives of f(x, y):

f(x, y) = 5x² + 5y² - 10x + 21

∂f/∂x = 10x - 10

∂f/∂y = 10y

The critical points of f occur where both ∂f/∂x and ∂f/∂y are equal to zero. This only happens at the point (x, y) = (1, 0). (And this point does lie inside R.)

Next, compute the Hessian matrix H(x, y) for f :

[tex]H(x, y) = \begin{bmatrix}\frac{\partial^2f}{\partial x^2} & \frac{\partial^2f}{\partial x\partial y} \\ \frac{\partial^2 f}{\partial y\partial x} & \frac{\partial^2f}{\partial y^2}\end{bmatrix} = \begin{bmatrix}10&0\\0&10\end{bmatrix}[/tex]

Since det(H(x,y)) = 100 is positive for all x and y, this means the critical point (1, 0) is a local minimum, and we have f(1, 0) = 16.

Next, we check for extrema along the boundary of R, which is comprised of a semicircle with radius 2 and the line segment connecting (-2, 0) and (2, 0).

• Parameterize the semicircular portion by

x(t) = 2 cos(t)

y(t) = 2 sin(t)

with 0 ≤ t ≤ π. Then

f(x(t), y(t)) = 20 sin²(t) + 20 cos²(t) - 20 cos(t) + 21

which is simplifies to a function of one variable t,

g(t) = 41 - 20 cos(t)

Find the extrema of g over the interval [0, π] : we have critical points when

g'(t) = 20 sin(t) = 0

which happens at t = 0 and t = π. At these points, we get local extreme values  of

•• t = 0   =>   x = 2 and y = 0   =>   f(2, 0) = 21

•• t = π   =>   x = -2 and y = 0   =>   f(-2, 0) = 61

• Over the line-segment portion, we take y = 0, so f(x, y) again reduces to a function of one variable:

f(x, 0) = 5x² - 10x + 21

Completing the square, we have

5x² - 10x + 21 = 5 (x - 1)² + 16

which has a maximum value of 16 when x = 1 (and this happens to be the critical point (1, 0) we found earlier).

So, over the region R, f(x, y) has

• an absolute maximum of 61 at the point (-2, 0), and

• an absolute minimum of 16 at (1, 0)

no link or bot q bpe

Answers

Answer:

(3,7)

Step-by-step explanation:

n will be located in x positive , y positive

A department store sells a pair of shoes with a 15% discount. The original price of the shoes is $75. What is the sale price?

Answers

Answer:

$63.75

Step-by-step explanation:

10% = 7.5

5% = 3.75

15% = 11.25

75.00

-11.25

63.75

write the percent as a decimal .84

Answers

Answer: 84%

Step-by-step explanation:

“write the percent as a decimal” - it already is a decimal.
It’s 84% by the way

11x - 2(x + 3) = 30. (filling up space) iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

Answers

Answer:

x=4

Step-by-step explanation:

11x - 2(x + 3) = 30

distribute: 11x-2x-6=30

add like terms: 9x-6=30

add 6: 9x=36

divide by 9: x=4

Answer:

x = 4

Step-by-step explanation:

11x - 2(x +3) = 30

11x -2x - 6 = 30

11x - 2x = 30 + 6

9x = 36

9x/9 = 36/9

x = 4

factor by grouping x^3 − 4x ^2 + 6x − 24

Answers

Answer:

[tex](x-4)(x^2+6)[/tex]

Step-by-step explanation:

x³-4x²+6x-24 is our equation

Once we factor it we get

[tex](x-4)(x^2+6)[/tex]

determine x+3 is a factor of P(x)=-2x^3-4x^2-7

Answers

Answer:

p(0)= -7

Step-by-step explanation:

Pizza Palace sells cheese pepperoni, sausage and mushroom pizzas. Caleb noticed that for every 10 orders of cheese pizza, there were 7 orders of pepperoni pizza, 5 orders of sausage pizza and 8 orders of mushrooms pizza. If there were 35 pepperoni pizzas ordered, how many total pizzas were ordered?

Answers

Step-by-step explanation:

cheese : pepperoni : sausage : mushroom =

10 : 7 : 5 : 8

so, in total there are 10+7+5+8 = 30 "business pieces".

to get the total number of pizzas, we need to see how many pizzas are sold per "business piece" ?

we get this from the 35 orders of pepperoni pizzas.

these 35 orders represent 7 "business pieces".

that means 1 "business piece" = 35/7 = 5 pizzas.

that means that 30 "business pieces" are 5×30 = 150

so, in total, 150 pizzas were ordered.

The sampling distribution of the ratio of two independent sample variances selected randomly from normal populations with equal variances is:

Answers

Answer:  F distribution. chi-square distribution. t distribution. normal distribution.

Step-by-step explanation:

For a particular event, 808 tickets were sold for a total of $3110. If students paid $3 per ticket and no student paid $5 per ticket. How many students tickets were sold?

Answers

Jsnsjsjsjsjshsjshshsjsjsjdhshshjxjxjxjsjdjxjdjsjdjdjdjdjddjjddi

8.
Identify the point corresponding to Q.



A. Q′ (−4, 1)

B. Q′ (−1, −4)

C. Q′ (−3, −4)

D. Q′ (−4, −3)

Answers

Answer:

C. Q′ (−3, −4)  

D. Q′ (−4, −3)

Step-by-step explanation:

From looking at the graph it looks like the answer would be

Q= (3, -4) if the X-axis goes first

Q= (-4, 3) if the Y-axis goes first

**PLEASE HELP OMG**
The square below is dilated by a scale factor of 3/2. Find the perimeter of the dilated square.

Answers

Answer:

W4 is our new scaled side

Step-by-step explanation:

Look at scale factor like this and it helps everytime so if it doesn’t help you there different methods.

3/2 has a larger number as a numerator so that means that the shape being scaled will get larger and if the number is smaller than denominator then the scaled figure will get smaller :3

In our case it gets bigger

do 16 divided by 2 which gives us 8 then times that by 3 to get 24

now thats how I solved this problem but if that not how you did it then you can do it your way :3

HOOE THIS HEEELPPED :DDD

I need help... pls. ​

Answers

Answer:

Administer 14 ml, 350mg/125mg=2.8×5ml=14ml

hiiii i need help with this word problem :)

Answers

Answer:

A= adult tickets, C=children tickets, S=senior tickets

A-10=C; C+10=A

4C=S

4C+6S+10A=1240, but S=4C and C=A-10

4C+24C+10C+100=1240

38C=1140

C=30 children tickets and $120

A=C+10=40 adult tickets and $400

4C=S=120 senior tickets and $720

$120+$400+$720= $1240.

what is the diameter of a circle that has the circumference of 400

Answers

Answer:

400/π

Step-by-step explanation:

Well, we know that the formula for circumference is πd. (d is the diameter) Then, we set up the equation 'πd = 400'. Now, simplifying for d, we get d = 200/π.

Answer:

400/π

Step-by-step explanation:

Evaluate. 3⋅23+52−18÷6 need help ASAP

Answers

The required value of the given numerical expression is 118, as evaluated by including the PEMDAS rule in the expression.

What is algebra?

Algebra is the analysis of mathematical representations, while logic is the manipulation of those symbols.

The Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction rule is abbreviated as PEMDAS. This rule is used to answer the problem correctly and properly.

The given numerical expression would be below as:

⇒ 3⋅23 + 52 − 18 ÷ 6

Using the PEMDAS rule in the above expression,

⇒ 3⋅23 + 52 − 18 ÷ 6

Apply the multiplication operation,

⇒ 69 + 52 − 18 ÷ 6

Apply the division operation,

⇒ 69 + 52 − 3

Apply the addition operation,

⇒ 121 − 3

Apply the subtraction operation to get

⇒ 118

Therefore, the evaluated value of the given expression would be 118.

Learn more about the PEMDAS rule here :

https://brainly.com/question/20876480

#SPJ5

What is the product of -13/8 and 24/5

Answers

Answer:

-7 4/5 or -7.8

Step-by-step explanation:

Product means multiplication

( - 13/8 )( 24/5)

= (-13 · 24)/(8 · 5)    negative · positive = negative

= - 312/40

=  -7  32/ 40 = -7 4/5 or 7.8

help with khan academy

Answers

I’ve attached my work, hope it helps, just flip a and b
C can be seen as it is located on the point 1.
B is the value which is greater than zero.
A is the value which is less than zero.
B is -2/7.
A is -4/7.
C is 0.

Someone pls help me with these worksheets.



(Please answer properly, if u don't know, just ignore it)

Answers

Answer:

i wrote answer of the question 1 to 4 but i don't know the answer to 5

Answer: 1) (3,0) 2) (4,2) 3) (5,1) not sure about 4 and 5

1) (3,7/2) 2) (1,-4) 3) (-3,2) im bad at word problems, sorry.

Step-by-step explanation: all i can say without sounding confusing is divide on both sides!! <3

let's substract : (2x + 3y) from (8x + 6y)​

Answers

The answer is 3(2x+y)

[tex]\huge\mathfrak\pink{answer} [/tex]

Dan earns £299 over the course of a five-day week. How much is that per day?

Answers

Answer:

£59.80

Step-by-step explanation:

299 ÷ 5 = 59.80

59.80 × 5 = 299

£59.8

Step by step

£299/5 = £59.8

Determine whether each sequence is an arithmetic sequence.
a. 3, 6, 12, 24 … [ A. Arithmetic Sequence , B. Not an Arithmetic Sequence ]
b. 1.5, 4.5, 7.5, 10.5, … [ A. Arithmetic Sequence , B. Not an Arithmetic Sequence ]
c. 8, 10, 12, 14, … [ A. Arithmetic Sequence , B. Not an Arithmetic Sequence ]
d. 9, 5, 1, –3 … [ A. Arithmetic Sequence, B. Not an Arithmetic Sequence ]
e. –2, 8, –18, 28, … [ A. Arithmetic Sequence , B. Not an Arithmetic Sequence ]

Answers

Answer:

a) A. Arithmetic Sequence

b) A. Arithmetic Sequence

c) A. Arithmetic Sequence

d) A. Arithmetic Sequence

e) B. Not an arithmetic Sequence

Step-by-step explanation:

if there is a common difference it is arithmetic, if there not then it is not arithmetic.

a) d= 3

b)d=3

c)d=2

d)d=-4

e)not arithmetic

Is the point (4, -15) on the line y = -3x - 3​

Answers

Answer:

yes

Step-by-step explanation:

since the format of ordered pairs is (x,y) we can plug in the values into the equation to see if they are on the line

y = -3x - 3​

-15 = -3(4)-3........plug in values

-15 = -12 - 3........multiply

-15 = -15..............subtract

-15 = -15..............this is true

Answer:

yes

Step-by-step explanation:

y = -3x-3

Substitute the point into the equation

-15 = -3(4) -3

-15 =-12-3

-15=-15

This is true so the point is on the line

Whats the answer to 2 1/6 + 3 4/9?

Answers

Answer:

4.61

did that help??

Step-by-step explanation:

[tex]2 \dfrac 16 + 3 \dfrac 49 \\\\\\= 2 + \dfrac 16 + 3+ \dfrac 49\\\\\\ = 5+\dfrac{11}{18}= 5 \dfrac{11}{18}[/tex]

148 oz = ________ lb _______ oz
Explain yourself

Answers

9lb 25oz

To obtain the mass in pounds divide the ounces by 16. The formula is: [lb] = [148] / 16.

Thus, rounded you get: 148 oz = 9.25 pounds. Now the numbers after the decimal point is oz.
Hope I helped

there is 26 students 15 like maths 13 like english and 9 dont like either

Answers

Answer:

yes, yes they do

Step-by-step explanation:

i dont know what you're asking

HELP ME
WHATS THE PERIMETER

Answers

Answer:

12

Step-by-step explanation:

divid half of line

Answer:

Perimeter = 60

Step-by-step explanation:

In order to find the perimeter of the given triangle, we must first determine the value of the missing side. We can use the Pythagorean Theorem to find the missing side of the given right triangle.

According to the Pythagorean Theorem: c² = a² + b², where c is the hypotenuse (the side that is opposite of the right angle, 90°), and a and b represent the legs of the triangle. Use the formula to solve for the missing side. Rearrang the formula to isolate the variable, a:

a² + b²  =  c²

Subtract b² from both sides:

a² + b² - b² =  c² - b²

a² =  c² - b²

Next, substitute the given values into the formula:

c (hypotenuse) = 26

b (leg) = 24

a² =  c² - b²

a² =  (26)² - (24)²

a² = 676 - 576

a² = 100

[tex]\sqrt{(a)^{2}} = \sqrt{100}[/tex]

a = 10

The value of the missing side is 10.

Now, we can solve for the perimeter of the triangle:

P = a + b + c

P = 10 + 24 + 26

P = 60

Therefore, the perimeter of the given right triangle is 60.

PLS HELP HELPPPPPPP!!!!!!!!!

Answers

Answer:

[tex]18ft[/tex]

[tex] \frac{bm}{ba} = \frac{bn}{bc} \\ \frac{4}{8} = \frac{3}{6} \\ \frac{1}{2 } = \frac{1}{2} [/tex]

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