Help!! what is -2r-1= -11

Answers

Answer 1
-2r - 1 = -11

So here you want to group all like terms onto either side.

So you can first do this by getting rid of the -1 by adding 1 instead.

-2r -1 + 1 = -11 + 1

-2r = -10

And then now you can just divide both sides by -2.

-2r = -10

/-2    /-2

r = 5
Answer 2
-2r-1= -11
+1       +1
-2r= -10
r=5

Related Questions

What is 0.61 repeating as a fraction and how did you get the answer

Answers

61/100, because if it is 0.(value) than it is value / 100 assuming value is 2 digits long. We cannot simplify it further because 61 is prime number.

Answer:

the answer is 61/99

Step-by-step explanation:

The perimeter of a square is 12p +4. One side of the square equals? Explain your answer.

Answers

We know that a square, by definition, has four congruent sides.

So, simply divide the perimeter by 4, and you will get the expression equivalent to each side: 12p+4/4

3p+1 is equal to one side of the square

48 inches long and 24 inches wide. What is the area of the poster in square feet?

Answers

Hi there! We just need to use some simple multiplication for this equation. I'll walk you through it.

Remember that 1 foot is 12 inches. This'll come in handy later.

48 * 24 = 1152

Now, divide this by 12.

1152/12 = 96

There you go! The area of the poster is 96 square feet.

:)

the area of the poster in square feet is,  8 feet²

What is Multiplication?

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Given that;

Length of poster = 48 inch

Width of poster = 24 inch

Since, We know that;

1 feet = 1 / 12 inch

Hence, Length of poster = 48 / 12

                                      = 4 feet

And, Width = 24 / 12

                 = 2 feet

Thus, Area of poster = Length x Width

                                = 4 x 2

                                = 8 feet²

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One-Half cup of black provides 15% of the potassium you need daily. You must get the remaining 2890 milligrams from other sources. How many milligrams of potassium should you consume daily?

Answers

Since the remaining 2890 milligrams is 100-15=85 percent of the potassium you need, we need to find how much 100% is. We can do this by dividing it by 8.5 to get 10 percent, and multiplying that by 10 to get 100%. This is 340*10=3400

The area of a square garden is one sixteenth
1.
16 squared 2. How long is each​ side?

Answers

Each side is 4 feet
16 ft squared = 4 feet
4 times 4= 16
A square has 4 sides that are equal
Each side is 4 feet

pi over 7 = a over 4. a=?

Answers

I hope this helps you.

The equivalent value of the expression π / 7 = a/4 is a = ( 4π/7 )

Given data:

To find the value of a when given π/7 = a/4, cross-multiplication is done and a is solved as:

When two fractions are equal, to eliminate the denominators, the cross multiplication is executed and the unknown variable is solved.

Cross-multiplying the equation:

π * 4 = 7 * a

Simplifying the equation:

4π = 7a

To solve for a, divide both sides of the equation by 7:

a = (4π) / 7

Hence, the solution of a = ( 4π/7 )

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Gymnast Clothing manufactures expensive soccer cleats for sale to college bookstores in runs of up to 500. Its cost (in dollars) for a run of x pairs of cleats is C(x) = 3050 + 8x + 0.1x2 (0 ≤ x ≤ 500). Gymnast Clothing sells the cleats at $150 per pair. Find the revenue and profit functions. How many should Gymnast Clothing manufacture to make a profit? Revenue = 150x Correct: Your answer is correct. Profit = 150x−(3050+8x+0.1x2) Correct: Your answer is correct. At least Incorrect: Your answer is incorrect. pairs

Answers

Final answer:

To find the profit maximizing quantity, we must calculate and compare total revenue, marginal revenue, total cost, and marginal cost for each unit level, and graph the total revenue, total cost, marginal revenue, and marginal cost curves. The profit maximizing quantity is where marginal revenue equals marginal cost.

Explanation:

To determine the profit maximizing quantity, we need to calculate total revenue, marginal revenue, total cost, and marginal cost for each output level of the winter coats sold by Doggies Paradise Inc. Since the firm is perfectly competitive and dog coats sell for $72 each, the marginal revenue is equal to the price, thus $72 for each additional unit sold.

Let's calculate these values and summarize them in a table:

Total Revenue (TR) = Price (P)  imes Quantity (Q) = $72  imes QMarginal Revenue (MR) = Change in TR / Change in Q = $72 (constant for each unit since P is constant)Total Cost (TC) = Fixed Costs (FC) + Variable Costs (VC)Marginal Cost (MC) = Change in TC / Change in Q

The marginal cost can be found by taking the difference in total variable costs for each additional unit produced plus the fixed costs. It's important to compare MR and MC for each output to find the profit maximizing quantity, where MR=MC. Graphing these will illustrate the intersection point that denotes the optimal output level. The total revenue and total cost curves can also help visualize the point at which profit is maximized, as this is where the distance between the TR and TC curves is largest.

Estimate 45.8 divided by 23.6

Answers

1.9406779661 is what i got bro
23.6 goes into about 45.8 about 1 and a half to about 2 times. Hope this helps

A conjecture and a portion of the flowchart proof used to prove the conjecture are shown.



Which equation best represents the information that should be in the box labeled 1?

3x = 9

3x = 26

3x = 27

3x = 30

Answers

3x - 1 = 26

addition property of equality, means add 1 to both sides
so 3x = 27

answer
3x = 27 (C. third choice)

Answer:

The correct option is 3.

Step-by-step explanation:

Given: [tex]\overline {PQ}\cong \overline{QR}[/tex], [tex]PQ=3x-1,QR=26[/tex].

Prove: [tex]x=9[/tex]

[tex]\overline {PQ}\cong \overline{QR}[/tex]             (Given)

[tex]PQ=QR[/tex]             (Segment congruent postulate)

[tex]3x-1=26[/tex]                         (Substitution property of equality)

Add 1 on both sides.

[tex]3x-1+1=26+1[/tex]          (Addition property of equality)

[tex]3x=27[/tex]

Divide both sides by 3.

[tex]x=9[/tex]               (Division property of equality)

Hence proved.

The required equation for box 1 is 3x=27.

Therefore the correct option is 3.

there are 16 sixth graders and 20 seventh graders in a club. the club wants to organize members into equal size groups. each group will only have sixth or only seventh graders.

how many students will be in each group if each group has the greatest number if club members

Answers

sixth graders can have 4 groups of 4
seventh graders can have 5 groups of 4
Finding the Least Common Multiple, 4, we can easily then divide each group (6th and 7 graders) by 4.
16 6th graders ÷ 4 = 4 groups
20 7th graders ÷ 4 = 5 groups
So, the the 6th graders will have 4 groups each with 4 people (LCM).
The 7th graders will have 5 groups each also with 4 people ( LCM).
Hope this helps!

What is the area of Figure ABCD?

a) 54 square inches
b) 60 square inches
c) 66 square inches
d) 72 square inches

Answers

d is the answer to the question

How much will you save if you buy an item listed at $75.50 at a 25% discount?

Answers

$18.88

You’d be saving 1/4th of $75.50
$18.87 is the answer I believe

what property was used to rewrite the polynomial expression
(x+5)+3(a+(6x)y) to (5+x)+3(a+(6x)y)

Answers

commutative property because all that was changed was the 5+x they were flip flopped
In order to rewrite the polynomial expression (x+5)+3(a+(6x)y) into (5+x)+3(a+(6x)y) the commutative property of addition is used.
The commutative property is most commonly used property in maths. According the commutative property of addition changing the order of addends does not change the sum. Which means that x+5=5+x, and because of this :
(x+5)+3(a+(6x)y) = (5+x)+3(a+(6x)y)

The sum of two consecutive integers is 150. what are the two integers ?

Answers

Hello There!

Place it into an equation:
n + n + 1 = 150
Simplify:
2n + 1 = 150
Subtract 1 from both sides:
2n + 1 - 1 = 150 - 1
Simplify:
2n = 149
Divide by 2
n = 74.5
The numbers would have to be 74.5 and 75.5.

Hope This Helps You!
Good Luck :)

The numbers are 74.5 and 75.5

What is algebra?

Algebra is a branch of mathematics that deals with symbols and the arithmetic operations across these symbols. These symbols do not have any fixed values and are called variables. In our real-life problems, we often see certain values that keep on changing. But there is a constant need to represent these changing values. Here in algebra, these values are often represented with symbols such as x, y, z, p, or q, and these symbols are called variables. Further, these symbols are manipulated through various arithmetic operations of addition, subtraction, multiplication, and division, with an objective to find the values.

Given number:

150

let the consecutive number be x and x+1

Now, according to the question

x+x+ 1= 150

2x + 1 = 150

2x= 149

x= 149/2

x= 74.5

hence, the numbers are 74.5 and 75.5

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Solve x2+4x+1=0. Please someone help me

Answers

the answer of this question is given above.
hope this helps

Answer:

x=2+square root 3

Step-by-step explanation:

hope it helps

Theo had a balance of-$4 in his savings account.after making a deposit he has $25 in his account what is the overall

Answers

25 - (-4)

Since two negatives make a positive,

25 + 4

29 is your answer

Hope this helps!

the average adult horse needs 2/5 bale of hay each day to me dietary recommends. Oh horse farm has 44 bales of hay. How many horses can be found in one day with 44 bales of hay?

Answers

110 horses can be found in one day with 44 bales of hay.  If each horse needs 2/5 bales of hay each day, just convert 2/5 into a decimal (0.4) and divide 44 by 0.4 to get 110.  (That's a lot of horses!)

Which phrase correctly describes the following expression?(5+23)

Answers

Final answer:

The expression (5+23) is correctly described as a simple addition, resulting in a sum of 28. It exemplifies the basic operation of adding two numbers together, an essential mathematical skill.

Explanation:

The phrase that correctly describes the following expression (5+23) is simple addition. This expression simply requires adding the two numbers within the parentheses, leading to an answer of 28. Unlike complex expressions that involve multiple operations and rules such as the distributive property or the order of operations (parentheses, exponents, multiplication and division, and addition and subtraction), this expression only requires basic addition.

The concept of addition is fundamental in mathematics, allowing for the combining of two or more numbers to find their total. Such operations are building blocks for more complex arithmetic and algebraic tasks.

It's also important to note that the order in which numbers are added does not change the sum, a principle known as the commutative property of addition.

Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. What is the resulting expression? (4x2 + 3)(x2 – 5) (4x2 – 3)(x2 – 5) (4x2 – 5)(x2 + 3) (4x2 + 5)(x2 – 3)

Answers

Answer:

Hi there! The answer is to this question is

B. (4x2 – 3)(x2 – 5)

Hope this helps :D

The factored form of the polynomial 4x⁴ – 20x² – 3x² + 15 is (4x² – 3)(x² – 5). The correct option is B.

What is a polynomial?

A polynomial in mathematics is an expression made up of coefficients and indeterminates and involves only the operations of multiplication, addition, subtraction, and non-negative integer exponentiation of variables.

Given polynomial is 4x⁴ – 20x² – 3x² + 15. The polynomial by grouping can be solved as below:-

P = 4x⁴ – 20x² – 3x² + 15

P = 4x² ( x² - 5) -3 ( x² - 5 )

P = (4x² – 3)(x² – 5)

Hence, the factored form of the polynomial 4x⁴ – 20x² – 3x² + 15 is (4x² – 3)(x² – 5).

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The largest butterfly in the world is found in Papua,New Guinea.The female butterfly of the species weighs about 9/10 ounce.Use a decimal to write the female's weight.

Answers

If you take 9 and divide it by ten then you get your decimal of 0.9 Remember fractions always mean divide.

Classify each pair of numbered angles.

Drag and drop the descriptions into the boxes to correctly classify each pair of numbered angles. Each description may be used more than once.

Adjacent

Linear Pair

Vertical

None

Answers

Adjacent angles are angles with a common side and vertex, linear pairs are adjacent angles that are supplementary, and vertical angles are angles made by the same two lines but on opposite sides.

For the first one, 5 and 6 clearly do not share a side but they are made up by the same 2 lines and are opposite of each other, making them vertical.

For the next one, since the angles only share 1 line (and not a side) they can't be any of the above. 

The paired numbered angles can be classified as follows:

<5 and <6 are vertical angles

<1 and <2 are none (not vertical, not adjacent, not a linear pair)

Recall the following:

Adjacent angles share a corner and a common side, but do not overlap.Linear pairs are two angles that are adjacent to each other along a straight line.Vertical angles share a common vertex but are not adjacent to each other.

Therefore, from the above stated facts, we can conclude that:

<5 and <6 are vertical angles

<1 and <2 are none (not vertical, not adjacent, not a linear pair)

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melissa is making clothes for her dolls.She has 7/8 yard of fabric.Each doll shirt requires 2/7 of a yard of fabric.How many shirts can she make for her dolls?

Answers

To answer this question you just need to divide the fabric she has( 7/8 yard of fabric) with the amount of fabric needed per shirt(2/7 yard of fabric). Then the calculation would be:

Number of shirt= fabric she has / fabric needed per shirt
Number of shirt = 7/8 yard / (2/7 yard/shirt) 
Number of shirt  = 7/8 yard * (7/2 shirt/yard)= 49/16 shirt= 3.065 shirts.

If you round it up, it should be 3 shirts.

evaluate this exponential expression 7*(6+2)^2-3^2

Answers

Yay. I get to answer a question that is actually fun. 

[tex]7(6 + 2) ^2 - 3^2 7(8) ^2 - 3^2 7(64) - 9 448 - 9 439[/tex]

Thus, your answer is: [tex]439[/tex]
Following the Order of Operation, the first step would be to solve what is in parenthesis so:
7*(8)^2-3^2
Now, exponents:
7*64-9
Now multiply what you can:
448-9
and finally, subtract for your answer:
439


the larger of two numbers is nine less than four times the smaller number. If the sum od the two numbers is 76, find both numbers

Answers

x = larger number
y = smaller number

x = 4y - 9
x + y = 76

4y - 9 + y = 76
5y = 76 + 9
5y = 85
y = 85/5
y = 17

x + y = 76
x + 17 = 76
x = 76 - 17
x = 59

ur numbers are 17 and 59

Answer:

17 and 59

Step-by-step explanation:

Let's find the answer by assuming the following:

L=larger number

S=smaller number

The first condition is: 'L' is nine less than four times 'S' but, because:

(four times 'S') is the same as 4*S then:

('L' is nine less than four times 'S') is equal to ('L' is nine less than 4*S), which means:

L+9=4*S (eq. 1)

Second condition is: the sum of the two numbers is 76, so:

L+S=76 which can be written as:

S=76-L using this relation in eq. 1 we have:

L+9=4*S

L+9=4*(76-L)

L+9=304-4L

L+4L=304-9

5L=295

L=295/5

L=59

And also we have:

L+S=76

S=76-L

S=76-59

S=17

In conclusion, the two numbers are 17 and 59.

Zach has 3/4 hour to play video games. it takes him 1/12 hour to set uo the system. Each round of his favorite game takes 1/6 hour. How many rounds can he play

Answers

Final answer:

After setting up the system, Zach has 2/3 hour left to play. Since each round takes 1/6 hour, he can play 4 full rounds of his favorite game.

Explanation:

Zach has 3/4 hour to play video games, and it takes him 1/12 hour to set up the system. Each round of his favorite game takes 1/6 hour. To find out how many rounds he can play, we need to subtract the setup time from the total available time and then divide by the time each game takes.

Subtract the setup time from the total time: 3/4 hour - 1/12 hour.Calculate the common denominator and subtract: 9/12 hour - 1/12 hour = 8/12 hour, which simplifies to 2/3 hour.Divide the remaining time by the time per round: 2/3 hour ÷ 1/6 hour.Calculate the number of rounds: 2/3 hour × 6/1 hour = 4 rounds.

Zach can play 4 full rounds of his favorite game.

Morgan has $60 to spend on clothes. He wants to buy a pair of jeans for $25 and spend the rest on t-shirts. Each t-shirt costs $5. Which inequality represents the number of t-shirts he can purchase? x ≥ 7 x ≤ 16 x ≤ 7 x ≥ 16

Answers

Money Left after Jeans = $60 - $25
                                       = $35

If one shirt costs $5 then,
 # of shirts that can be purchased = $35 ÷ $5
                                                          =   7

                ∴  a suitable inequality is x ≤  7  (where x represents the number of shirts)


And this is true because if more than 7 shirts are bought, then more than $35 would be needed.

Answer:

x ≤  7

Step-by-step explanation:

Write the number in expanded notation 4,408,730

Answers

4,408,730

(4 * 1,000,000) + (4 * 100,000) + (8 * 1000) + (7 * 100) + (3 * 10)

The place value chart can help us to write a number in expanded notation. When we put 4,408,730 into the place value chart, we can recognize that our number is equal to

4 millions + 4 hundred thousands + 0 ten thousands + 8 thousands + 7 hundreds + 3 tens + 0 units

Image is provided.

In 12 hours, how many more kilometers could the yellow car go than the red car if the red car has an average speed of 217/km per hour and the yellow car has 242 km per hour?

Answers

300 KM 217x12 =2604
242x12= 2904

Write an equation in point-slope form for the line through the given point with the given slope Point: (3, -4) Slope = 6

Answers

Answer: y + 4 = 6(x - 3)

Step-by-step explanation:

      The point-slope formula is y - [tex]y_1[/tex] = m(x - [tex]x_1[/tex]) where m is the slope and ( [tex]x_1[/tex], [tex]y_1[/tex]) is a point on the graph.

      Using the formula given above, we will plug in what we know to write our equation.

y - [tex]y_1[/tex] = m(x - [tex]x_1[/tex])

y - (-4) = (6)(x - (3))

y + 4 = 6(x - 3)

Chris needs a graphing calculator for math class. He finds a $60 model on sale for 15% off. If he decides to buy this calculator, how much will the sale price be?

Answers

The answer would 51
The answer would be 51
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