What is the value of r in this equation? 3 + r = 12

Answers

Answer 1

Answer:

9

Step-by-step explanation: subtract 3 from 12 and you get 9 as your answer


Related Questions

At Jonathan's school, there are 30 seventh graders participating in the school play. Of the students in the seventh grade, 60% are not participating in the school play. How many seventh graders at Jonathan's school are not participating in the school play?

Answers

Answer:

75

Step-by-step explanation:

If 30 students represent 40% of the class, we can divide 30 by .40 to get 75.

once again... drop the answer or ill drop ur ip :)

Answers

Answer:

-11x = -48 +15

x = (-48+15) / (-11)

x = -33 / -11

x= 3

hope that help

Step-by-step explanation:

4e88s45etds8sistzerse8rse85t8ss

i am the sum of 10 and another even number i am more then a dozen i am the sides of a trapezoid plus 2 what am i

Answers

Answer:

decagon 10 sides.

Step-by-step explanation:

If your a dozen Then your a dodecagon.

Jill hired a band to play at her wedding. The band charges $3,000 and requires a 20% deposit. How much money does Jill need for the deposit?

Answers

Answer:

3000 times 100

divide by 20

3000*0.20=600

So 3000-600=2400

3-x>2 or 4x+2> 10 what is the graph of the solution to the following compound inequality

Answers

Answer:

x<1 is the answer

Step-by-step explanation:

3-x>2

-x>2-3

-x>-1

Cody increased the amount of money he saves each week from $40 to $75. By what percentage did Cody increase the amount of money he saves?

Answers

Step-by-step explanation:

75-40= 35

[tex] \frac{35}{40} \times 100\% = 87.5\%[/tex]

Simplify 2.19g + 0.59b + 1.49p

Answers

Answer:  it can't be simplified,,, the variables are all different

Step-by-step explanation:

please please please help, and explain if you can

Answers

45 degrees times 2 is 90 degrees.
360 degrees is all of those angles added together. Subtract 90 degrees from 360 you get 270 degrees. Divide 270 by 2 since you’re looking for one angle only and not two, answer is 135 degrees

The store plans to purchase the uniforms and hand out 5 uniforms to every employee, one for each day of the week uniforms come in packs of 8, and the store plans to purchase 56 packs of uniforms. How many employees can store give uniforms to? Will the store have any uniforms left over?

Answers

Answer:

89 employees

3 uniforms left

Step-by-step explanation:

Number of Uniforms per employee = 5

Uniform per pack = 8

Number of packs = 56

Total number of uniforms :

56 * 8 = 448 uniforms

Number of employees who can get uniform :

1 employee = 5 uniforms

Number of employees = 448 / 5 = 89.6

Hence, 89 employees

Yes, (448 - (89*5)

= 448 - 445

= 3 uniforms left

need help............

Answers

9514 1404 393

Answer:

  Perimeter: 17 inches

  Area: 8 square inches

Step-by-step explanation:

The ratio of perimeters is the same as the similarity ratio.

  JKLM perimeter / ABCD perimeter = P/68 = 1/4

Multiplying by 68, we get ...

  P = 68/4 = 17 . . . . inches

__

The ratio of areas is the square of the similarity ratio.

  JKLM area / ABCD area = A/128 = (1/4)^2

Multiplying by 128, we get ...

  A = 128/16 = 8 . . . . square inches

__

Perimeter = 17 inches

Area = 8 square inches

which property justifies step 3 Given: 4(x - 6) + 12 = 20

Answers

Answer:

x=8

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

4(x−6)+12=20

(4)(x)+(4)(−6)+12=20(Distribute)

4x+−24+12=20

(4x)+(−24+12)=20(Combine Like Terms)

4x+−12=20

4x−12=20

Step 2: Add 12 to both sides.

4x−12+12=20+12

4x=32

Step 3: Divide both sides by 4.

4x

4

=

32

4

Mai solved the equation below incorrectly. Identify Mai's error and then solve the equation correctly.
X-9) = {(x + 18)
3x - 3= kx +9
1
4
X-3=9
1
41
-x = 12
X = 48
What was Mai's error?

Answers

Answer: Please see explanation column for answer.

x= -36

Step-by-step explanation:

Step 1

from the attachment, Mai's solving is given as

1/3 (1/2x- 9) = 1/2 (x+18)

1/6x-3= 1/2x+9

1/4x-3=9

1/4x=12

x=48

Mai's error started when he subtracted wrongly 1/2 x from 1/6x which gave him 1/4 x instead of - 1/3 x.

Solving correctly, we have that

1/3(1/2x-9) = 1/2(x+18)

1/6x -3= 1/2x+ 9

taking like terms to like terms

1/6x-1/2x= 9+3

(1-3)/6x= 12

-2/6x= 12

-1/3x= 12

multiplying both sides by -3

-1/3x X -3 = 12 X -3

x= -36

Translate the given phrase into an algebraic expression.
Three is subtracted from
g

Answers

Answer:

g - 3

Step-by-step explanation:

g- 3

Hope that helps!

If you get this question right I will give you brainlist

Answers

Answer:

I think 99in

Step-by-step explanation:

3x13=39

5x12=60

39+60=99

Determine the slow & y-intercept for the line shown. Then write the equation . If you hurry I’ll mark brainliest

Answers

Answer:

y = 3x + 4

Step-by-step explanation:

slope is 9/3 simplified to 3

y intercept is 4

2,000 - 61k = 48
In 1962, the population of a bird species was 2,000.
The population k years after 1962 was 48, and k
satisfies the equation above. Which of the following
is the best interpretation of the number 61 in this
context?

Answers

Answer:

61 is the rate at which the population changes every year

Step-by-step explanation:

Given

[tex]2000 - 61k = 48[/tex]

Required

Interpret 61

A linear equation has the form:

[tex]y = mk + b[/tex]

or

[tex]b + mk = y[/tex]

Where m is the rate

By comparison:

[tex]mk = -61k[/tex]

[tex]m = -61[/tex]

Hence, 61 represents the rate at which the population changes yearly.

The negative sign implies that the populatiin reduces

Find the product.
Please help it means a lot thx
(3x + 7)^2

Answers

Answer:

9x + 49

Step-by-step explanation:

(3x+7)^2

9x + 49

Joey drives his car 80 miles per hour on the highway. Write an equation that relates his distance traveled. (d) to the time elapsed (t).

Answers

Answer:

d=80+t? hope that helps not much info in this

Step-by-step explanation:


A side of a square is
8 3/2
inches. Using the area formula A = s^2, determine the area of the square.

Answers

Answer:

12 inches

Step-by-step explanation:

6x-y=1 convert the standard form to a slope intercept.

Answers

Answer:

y= 6x-1

Step-by-step explanation:

6x-y=1

-y= -6x+1  (move x over to the right side)

y= 6x-1 (divide both sides by -1)

How to calculate 46% of 50

Answers

Answer:

the answer is 23

Step-by-step explanation:

100/50=2

46/2=23

Answer:

23

Step-by-step explanation:

50/x=100/46

(50/x)*x=(100/46)*x       - we multiply both sides of the equation by x

50=2.17391304348*x       - we divide both sides of the equation by (2.17391304348) to get x

50/2.17391304348=x

23=x

x=23

now we have:

46% of 50=23

PLEASE HELP ME FILE IS ATTACHED

Answers

Answer:

Its below in the explanation

Step-by-step explanation:

2^2 = 4 so y=4 and x,y = 2,4

3^2 = 9 and x,y = 3,9

4^2=16 and x,y=4,16

Please give me brainliest

Answer:

2^2 = 4 so y=4 and x,y = 2,4

3^2 = 9 and x,y = 3,9

4^2=16 and x,y=4,16

Step-by-step explanation:

Complete the conversion. Enter your answer in the box. 7 c = pt

Answers

Answer:

7 cups = 3.5 pints

Step-by-step explanation:

A large company states in its promotional literature that 74% of its employees have college degrees. Assume this claim is true. If 3 employees are selected at random from this company, what is the probability that at least 1 of the selected employees will not have a college degree?

A. 0.0176
B. 0.4052
C. 0.5948
D. 0.9284

Answers

Answer:it is 0.5948

Step-by-step explanation:c

The probability that at least 1 of the selected employees will not have a college degree is 0.594776.

What is Binomial distribution?

A common discrete distribution is used in statistics, as opposed to a continuous distribution is called a Binomial distribution. It is given by the formula,

[tex]P(x) = ^nC_x p^xq^{(n-x)}[/tex]

Where,

x is the number of successes needed,n is the number of trials or sample size,p is the probability of a single success, andq is the probability of a single failure.

Given that 74% of the employees have degrees, therefore, 26% of the employees have no degree.

Now, since we want at least any one of the three people selected to have a degree. Therefore, the probability of everyone having a degree can be written as,

Probability that at least any one of the three people selected to have a degree = 1 - Probability of everyone having a degree

Now, using the binomial distribution we can write,

[tex]\text{Probability} = 1 - [^3C_0\cdot(0.26)^0 \cdot (0.74)^{(3-0)}]\\\\\text{Probability} = 1 - 0.405224 = 0.594776[/tex]

Hence, the probability that at least 1 of the selected employees will not have a college degree is 0.594776.

Learn more about Binomial Distribution:

https://brainly.com/question/14565246

#SPJ2

Help please!! I don't understand the meaning! Please describe what you did too please!!

Answers

I suggest using an app for math to solve problems like this they r helpful for example PhotoMath and Socratic
the answer is yes i hope this helps i didn’t this before

if you have three apples and john takes 1 how many do you have

Answers

Answer:

you got two apple left I hope this helps

you would have 2 left

Miss Johnson gave her class the following equation 8x - 20=15 + x solve the equation to show their work has been in.christina and Jamar solve the equation 2 different ways and debate about which person was correct.who solved the equation correctly?
a.CHRISTINA
B.JAMAR
C.BOTH
why do you think you are correct in your choosing support your answer with details​

Answers

Answer:

Both solved it correctly

Step-by-step explanation:

Write the equation in slope intercept form of the line passing through the following points (0,5) and (-5, -1).

Answers

Answer:

y = 6/5x

Step-by-step explanation:

1. [tex]y = \frac{-1-5 }{-5-0}[/tex]

2. subtract the two number on the top of the fraction bar to get 6

3. do the same for the denominator to get 5

4. your final answer is [tex]\frac{6}{5}[/tex]

What is it guys?????????

Answers

Answer:C

Step-by-step explanation:

Notice that the line is heading downward. This is a clue that it has a negative slope. Think of slope as rise over run. Rise being up or down on the y axis and run being left or right on the x axis. If we start at (0,0) and count down 3 squares and left 4 squares we can see that -3/4 is the slope.

Answer:

A. 3/4

Step-by-step explanation:

m = [tex]\frac{y2 - y1}{x2 - x1}[/tex]

(-8, -6) (-4, -3)

[tex]\frac{-3 + 6}{-4 + 8} = \frac{3}{4}[/tex]

PLS HURRY! RIGHT ANSWER EARNS BRANLIEST
Isolate the variable to solve 4x + 4 > –20. Which number line shows the solution set?

Answers

Answer:

B

Step-by-step explanation:

Makes the most sense

Answer: B

Step-by-step explanation:x>-6

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