Solve for r in the expression 3 (2 - 5) = 12.​

Solve For R In The Expression 3 (2 - 5) = 12.

Answers

Answer 1

Answer:

The answer is x = 9

Step-by-step explanation:

[tex]3(x-5)=12[/tex]

use the distributive property on the left side

[tex]3x-15=12[/tex]

add 15 to both sides

[tex]3x=27[/tex]

divide both sides by 3

[tex]x = 9[/tex]

Answer 2

Answer:

The correct answer will be x=9

Step-by-step explanation:

Because I said so


Related Questions

Find the distance between (-5,6)and (3,2).

Answers

Answer:

[tex]\displaystyle d = 4\sqrt{5}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Coordinates (x, y)

Algebra II

Distance Formula: [tex]\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Step-by-step explanation:

Step 1: Define

Point (-5, 6) → x₁ = -5, y₁ = 6

Point (3, 2) → x₂ = 3, y₂ = 2

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d

Substitute in points [Distance Formulas]:                                                     [tex]\displaystyle d = \sqrt{(3+5)^2+(2-6)^2}[/tex][Distance] [√Radical] (Parenthesis) Add/Subtract:                                       [tex]\displaystyle d = \sqrt{(8)^2+(-4)^2}[/tex][Distance] [√Radical] Evaluate exponents:                                                    [tex]\displaystyle d = \sqrt{64+16}[/tex][Distance] [√Radical] Add:                                                                             [tex]\displaystyle d = \sqrt{80}[/tex][Distance] [√Radical] Simplify:                                                                         [tex]\displaystyle d = 4\sqrt{5}[/tex]

Select ALL the statements that are true.

a
The radius of a circle is two times larger than the diameter.
b
The diameter of a circle is two times larger than the radius.
c
The diameter is half the radius of a circle.
d
The radius is half the diameter of a circle.

Answers

Answer:

a b d are true statement ..............

Doughnuts are sold in bag and cartons. A bag holds 4 doughnuts and a carton holds 10 doughnuts. Tome buys b bags of doughnuts and c cartons of doughnuts. He buys a total of t doughnuts. Write down the formula for t in terms of b and c

Answers

Answer:

[tex]t = 4b + 10c[/tex]

Step-by-step explanation:

Given

1 bag = 4 doughnuts

1 carton = 10 doughnuts

Required

Determine the amount of doughnuts in b bags and c cartons

If 1 bag contains 4 doughnuts, then b bags contain 4b doughnuts

If 1 carton contains 10 doughnuts, then c cartons contain 10b doughnuts

So, the total (t) is calculated by adding up the amount of doughnuts in the cartons and the bags:

i.e.

[tex]t = 4b + 10c[/tex]

The solid contains a cylinder and a hemisphere. Find the volume of the composite solid. 4.4m radius and 5m height

Answers

Answer:

303.95 m^3

Step-by-step explanation:

Volume = πr2h

r= 4.4

h = 5

= 3.14 × 4.4^2 × 5

= 3.14 × 19.36 × 5

= 303.95

Hence the volume is 303.95 m^3

Question :-

The solid contains a cylinder and a hemisphere. Find the volume of the composite solid that has a radius of 4.4 m and a height of 5 m.

Answer :-

The volume of the composite solid is 303.952 m³.

[tex] \rule{180pt}{4pt}[/tex]

Diagram :-

[tex]\setlength{\unitlength}{1mm}\begin{picture}(5,5)\thicklines\multiput(-0.5,-1)(26,0){2}{\line(0,1){40}}\multiput(12.5,-1)(0,3.2){13}{\line(0,1){1.6}}\multiput(12.5,-1)(0,40){2}{\multiput(0,0)(2,0){7}{\line(1,0){1}}}\multiput(0,0)(0,40){2}{\qbezier(1,0)(12,3)(24,0)\qbezier(1,0)(-2,-1)(1,-2)\qbezier(24,0)(27,-1)(24,-2)\qbezier(1,-2)(12,-5)(24,-2)}\multiput(18,2)(0,32){2}{\sf{4.4 \: m}}\put(9,17.5){\sf{5 \: m}}\end{picture}[/tex]

Solution :-

As per provided information in the given question, we have been given that the Radius of a cylinder is 4.4 meters. The height of a cylinder is 5 meters. We have been asked to find the volume of a cylinder.

To calculate the volume of a cylinder, we will apply the formula below :-

[tex] \bigstar \: \: \: \boxed{ \sf{ \: \: Volume_{(Cylinder)} = \pi r^2 h \: \: }}[/tex]

Substitute the given values into the above formula and solve for Volume :-

[tex]\sf:\implies Volume_{(Cylinder)} = \pi r^2 h[/tex]

[tex]\sf:\implies Volume_{(Cylinder)} = (3.14)(4.4 \: m)^2(5 \: m)[/tex]

[tex]\sf:\implies Volume_{(Cylinder)} = (3.14)(19.36 \:m^2)(5 \: m)[/tex]

[tex]\sf:\implies Volume_{(Cylinder)} = (60.7904 \:m^2)(5 \:m)[/tex]

[tex]\sf:\implies\bold{Volume_{(Cylinder)} = 303.952 \: m^3}[/tex]

Therefore :-

The volume of the composite solid is 303.952 m³.

[tex]\\[/tex]

Learn more about the Volume of a Cylinder at https://brainly.com/question/15197979

Have a great day! <33

A company claims that their new bottle holds 25% more laundry soap. If their original container held 42 fluid ounces of soap, how much does the new container hold?
The new container holds ___ fluid ounces.
HELP PLEASE. <3.

Answers

Answer:

52,5

It holds 10.5 more laundry soap

Two ways to look at this. Either way, we convert 25% to a decimal by dividing by 100, = 0.25

One way is to multiply 42 x 0.25 = 10.5. That tells us how many ounces are added. Then add 42 + 10.5 = 52.5 ounces

The other way is to multiply 42 x 1.25 = 52.5
In this equation, the 1 represents the original 42 oz, and the .25 represents the extra ounces.

Let me know if you have questions.

In JKL, J = 7.9 inches, K = 2 inches and L =9.8 inches. Find the measure of K to the nearest degree

Answers

Answer:

4

Step-by-step explanation:

Delta math

The measure of K to the nearest degree is 4°.

What is the laws of cosines?

The law of cosines, commonly referred to as the cosine rule or the cosine formula, in trigonometry essentially connects the length of the triangle to the cosines of one of its angles. It claims that we can determine the length of the third side of a triangle if we know the length of the first two sides and the angle between them.

Given ΔJKL,

j = 7.9 inches, k = 2 inches, l = 9.8 inches

to find the measure of angle K,

we can calculate the angle by cosine law,

cosK = (j² + l² - k²)/(2.j.l)

cosK = (7.9² + 9.8²  - 2²)/(2*7.9*9.8)

cosK = 154.45/154.81

K = cos⁻¹(0.99748)

K = 4.067⁰ ≈ 4°

Hence angle K is 4°.

Learn more about the laws of cosines;

https://brainly.com/question/17289163

#SPJ1

A state began an effort to increase the deer population. In year 2 of the effort, the deer population in a state forest was 3,000. In year 4, the population was 4,320.

The explicit rule for the geometric sequence is aₙ =

Answers

Step-by-step explanation:

i guess math is the hardest subject

Answer:

The answer is aₙ = 2,500 (6/5)^n-1

Hope i helped, have a wonderful day! :D

Simplify completely*****​

Answers

Answer:

[tex]\displaystyle x - 3[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Terms/CoefficientsFactoring

Step-by-step explanation:

Step 1: Define

[tex]\displaystyle \frac{x^2 + 7x - 30}{x + 10}[/tex]

Step 2: Simplify

[Fraction] Factor numerator:                                                                           [tex]\displaystyle \frac{(x - 3)(x + 10)}{x + 10}[/tex][Fraction] Divide:                                                                                             [tex]\displaystyle x - 3[/tex]

Find the missing base

Answers

Parallelogram area = height * base
base = Parallelogram area / height
base = 20 / 4
base = 5

11). Miguel has $87,255 in a savings account that earns 9% interest per year in simple interest. To the nearest cent, how much will he have in 4 years? OA). $31,411.80 O B). $123,167.55 O C). $35,912.55 OD). $118,666.80​

Answers

Answer:

[tex]A). \: \$31,411.80[/tex]

Step-by-step explanation:

[tex]s.i = \frac{p \times r \times t }{100} \\ \\ s.i = \frac{87255 \times 9 \times 4}{100} = 31,411.8[/tex]

Answer:A

Step-by-step explanation:

Is 13:15 and 30:26 a pair of equivalent ratios and why?

Answers

Given:

The two ratios are 13:15 and 30:26.

To find:

Whether the given ratios are equivalent or not.

Solution:

Two ratios are equivalent if the values of the ratio are equal after simplification.

[tex]13:15=\dfrac{13}{15}[/tex]

And,

[tex]30:26=\dfrac{30}{26}[/tex]

[tex]30:26=\dfrac{15}{13}[/tex]

[tex]30:26=15:13[/tex]

The first ratio is 13:15 and the value of second ratio after simplification is 15:13 both ratios are different, so,

[tex]\dfrac{13}{15}\neq \dfrac{30}{26}[/tex]

Therefore, the required answer is "No", the given ratios are not a pair of equivalent ratios.

Please help ASAP!
Thank you

Answers

The answer has to be 16 because when you add them it goes up
Yep. Your answer would be 16

To go on a summer trip, Felipe borrows $200. He makes no payments until the end of 3 years, when he pays off the entire loan. The lender charges sim
Interest at an annual rate of 2%.

Answers

Answer:

Step-by-step explanation:

A=P(1+rt)

A=200(1+.02(3))

A=200(1.06)

A=$212

ou intend to draw a random sample in order to test a hypothesis about an unknown population mean. You will use a hypothesis test. A description of each of the steps of a hypothesis test follows, but they may be specified in the incorrect order. Specify the correct order of the steps. Determine the null and alternative hypotheses. Draw a conclusion about the unknown population using what is known about the sample. Determine the probability at which you will conclude that the sample outcome is very unlikely. Draw a random sample, and calculate the sample statistic.

Answers

Answer:

Determine the null and alternative hypotheses :  STEP 1

Draw a conclusion about the unknown  population using what is known about the sample :  STEP 4

Determine the probability at which you will conclude that the sample outcome is very unlikely :  STEP 2

Draw a random sample and calculate the sample statistic : STEP 3

Step-by-step explanation:

The correct order of the steps are :

Determine the null and alternative hypotheses :  STEP 1

Draw a conclusion about the unknown  population using what is known about the sample :  STEP 4

Determine the probability at which you will conclude that the sample outcome is very unlikely :  STEP 2

Draw a random sample and calculate the sample statistic : STEP 3

The scale factor of similar figures is 4/3, and one side of the smaller triangle is 12.

The corresponding side on the larger triangle is 16.

True
False

Answers

Answer:

True

Step-by-step explanation:

The sum of 3 and
twice the number n

Answers

3x2= 6 so it’s 6 which is equal to n

someone please help!!!

Answers

Answer:

y = 3x + 5 option A

Step-by-step explanation:

For 2 lines that are parallel with slopes m1 and m2, the slopes are equal. Hence

m1 = m2

Given the line y = 3x - 5 Comparing with the general equation of a line

y = mx + c where m is the slope of the line

m = 3

hence m1 = m2 = m = 3

For the line that passes through the given point (2,11) Using

y - y1 = m (x - x1)

y - 11 = 3(x - 2)

y - 11 = 3x - 6

Add 11 to both sides

y = 3x - 6 + 11

y = 3x + 5

Complete the following statement.

Mac mixes 14 ounces of red paint with 6 ounces of blue paint. The ratio of blue paint to total paint is because for every 6 ounces of , there is 20 ounces of .

Answers

Answer:

The Ratio you are looking for is 5:8

Step-by-step explanation:

Answer:

6: azul

20: lila o morado

An inequality is like an equation, but instead of an equal sign (=) it has one of these signs: ______________, _______________ , ________________, _____________.

Answers

Answer:

An inequality sign is like an equal sign with a line through it

so, like, if you put = and / together

Answer:

<, >, =>, =<

Step-by-step explanation:

Kona wants to bake at most 30 loaves of banana bread and nut bread for a bake sale. Each loaf of banana bread sells for $2.50, and each loaf of nut bread sells for $2.75. Kona wants to make at least $44. Which system of inequalities models the situation

Answers

Answer:

The system of inequalities that models the situation is

Step-by-step explanation:

Given:

Total number of banana bread and nut bread must be atmost 30

Cost of one banana bread = $2.50

Cost of one nut bread = $2.75

Kona wants to make at least $44

To Find:

The system of inequalities models the situation

Solution:

Let the number of banana bread loaves be x

Let the number of nut bread loaves be y

Then kona wants to make at most 3 loaves of bread,

So...

Then By selling one banana bread to $2.50, and each loaf of nut bread sells for $2.75,Kona wants to make at least $44. TvT hope this helps

A large store has a warehouse it uses for storage. Trucks back up to the loading dock where merchandise is unloaded, sorted, and stacked in the correct area of the warehouse. The large shelves in the storage area are 17 feet 8 inches apart so the forklift machines can operate between the shelves. Is that distance greater than or less than 216 inches?

Answers

Answer:

The distance is less than 216 inches.

Step-by-step explanation:

Each feet has 12 inches.

The large shelves in the storage area are 17 feet 8 inches apart

So, in inches, this distance is of:

17*12 + 8 = 212

This distance is less than 216 inches.

what is 10 2/3 in inproper numbers

Answers

Answer:

[tex]\frac{32}{3}[/tex]

Step-by-step explanation:

you simply multiply the bottom number times the whole number:

10*3 =30

then add the top number:

30+2=32

and finally, you put the 32/3

invests $8,000 in a savings plan that pays 5% per year. What will the account balance be at the end of the first year?

Answers

The equation is I = PRT where I is the interest to, P is the principal, or money deposited, R is the rate in decimal form, and T is time in years.

I = (8,000)(0.05)(1)
I = $400

Add that to the original deposit and you have $8,400 as the account balance at the end of the first year

Решите уравнение: а) 6x = 18;
б) –3x = 15; в) 7x = -63;
г) 5x - 3 = 12; д) — 4х + 1 = 13; е) -x+ 9 = 16.​

Answers

Answer:

6x=18

x=18/6

x=3.

-3x=15

x=15/-3

x=-5

7x=-63

x=-63/7

x=-9

5x-3=12

5x=12+3

5x=15

x=15/5

x=3

-4x+1=13

-4x=13-1

-4x=12

x=12/-4

x=-3

-x+9=16

-x=16-9

-x=7

x=7/-1

x=-7

i have to do a number graph using fractions I dont know how​

Answers

Answer:

What kind of graph?

5у2 2is a power + бу - 4

Answers

Answer:

Its 5000

Step-by-step explanation 4883-3455=5000

Anna worked out at a gym for 2 hours.
Her workout included stretching for 21
minutes, jogging for 45 minutes, and
lifting weights for the remaining amount
of time. What percentage of Anna's
workout was spent lifting weights?

Answers

Answer:

! not sure if correct !

Step-by-step explanation:

54% of anna's workout was lifting weight

Answer:

45%

Step-by-step explanation:

21+45=66=1 hour 6 mins

2 hours=120 min

120-66=54

(54/120)x100=45 45%

what is 18,693.51 as 2dp

Answers

Answer:

What are u even talking about

Step-by-step explanation:

Marla mixed cream and milk in a ratio of
2 parts cream to 3 parts milk. How many
liters of each did she use if she made 20 liters

Answers

Answer:

If it says she made 20 liters of cream then She has 30 liters of milk

Step-by-step explanation:

2 cream x 10 = 20

3 milk x 10 = 30

Hope this helps!

Plz make me Brainliest.

Algebra 2 Unit 1 Assessment
Which of the following contains multiple variables?
4a + 5b + 1

4a + 5a + 1

4a - 1

4 - 1

Answers

Answer:

I would have to say A

Step-by-step explanation:

B has 2 of the same variables while A has to different variables and C&D have no variables there for the answer is A

i also think it’s A
Other Questions
Need help ASAP (You dont have to show work, just answer it) (ONLY ANSWER IF YOU KNOW)The excerpt below was written by Henry Stimson in 1941:The atomic bomb was more than a weapon of terrible destruction, it was a psychological weaponWhat did Stimson mean by this statement?A. US leaders had tricked the Japanese into thinking they were more powerful than they wereB. Skillful use of the atomic bomb could force opponents to make concessions.C. The atomic bomb was an ineffective way to end warD. The atomic bomb was not quite as dangerous as many people thought Which functions are carried out by the water vascular system? Check all that apply.movementreproductionrespirationtransportation of foodtransportation of water five ways on how I can apply what I've learned to real life Simplify the expression below 12 divided by (2+1) 2. Classify the angle as acute, obtuse, right or straight.O acuteO obtuseOrightstraightHELP ASAP Could somebody please find the bugs and amend them? This question is worth 25 Brainly points!---------------------------------------------------------------------------#Tax Calculator with 4 bugssalary = int(input("Please enter your annual salary: "))if salary < 30000 #Salaries under 30000 are taxed at 20% tax = salary * 0.2elif salary >= 30000:#Salaries over 30000 are taxed at 40% for anything over 30000 salary = salary - 30000tax = salary * 0.4 + 6000 else:#Salaries over 150000 are taxed at 45% for anything over 150000 salary = salary - 150000 tax = salary * 0.45 + 6400 + 48000print("Earnings of ",salary,"will attract taxes of ",round(tax,2))input("Press ENTER to quit") The value of resistance r was determined by measuring current I flowing through the resistance with an error A hot air balloon is at an altitude of100 1/5 yards. The balloon's altitude decreasesby 10 4/5 yards every minute. Determine thenumber of minutes it will take the balloon to reach an altitude of 57 yards. What's the answer? A) Y= 2xB) Y= -2x - 4C) Y= 2x - 2D) Y= 2x + 2 Se necesitan 30kg al dia para alimentar a las gallinas y alos gallos. Se tiene un gallo por cada 5 gallinas y se sabe que una gallina come una media de 400g, el doble que un gallo pls, need help i have classwork i dont understand, explain also PLEASE HELP I NEED THIS RIGHT AWAY.which statement best describes the role of plate tectonics in changes that occur on Earth?A. convection currents in the mantle cause mountain ranges to slowly collapse over time. B. the movement of plates build pressure that is released during an earthquake. C. the subduction of ocean crust cools the mantle and prevents volcanic eruptions. D. seafloor spreading causes ocean basins to get smaller in the shower over time. Explain- Why are tobacco,alcohol and ultraviolet radiation listed as carcinogens in the table? What is the equation for calculating the change in water potential? In other words, this equation allows you to determine which way the water will move in response to two different concentrations. What is a major problem with CFCs?A-it is toxic to breathe.B-It does not readily break down in the atmosphere.C-It is a greenhouse gas.D-It isn't a good refrigerant you can perform 10 push ups in 25 seconds. write an equation that represents the relationship between time x and the number of pushups y. How many terms are in the expression3x + 2y + Z4235 QUESTION:Which of the following statements is true about bulk metal?POSSIBLE ANSWERS:O A billet is smaller than a bloom.OA slab is no greater than 0.25 in. thick.OA bloom is smaller than a bar.