Mathematics Middle School

Is -b always, never, or sometimes a positive number?

urgent!

Answers

Answer 1

-b can never be a positive number. If a number has a dash like that in front of it it is negative

Answer 2

Always negative that’s what the dash means

Related Questions

What Is the answer to this problem
S/1.5=0.8

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First, you would multiply both sides by 1.5 to get the variable by itself. Then, the product of 1.5 and .8 will equal S.

You need to get S by itself, and in order to do that, you need to multiply 0.8 by 1.5. This sets S=1.2

Is 3.2 a rational number?

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The number is between integers, so it can't be an integer or a whole number. It's written as a ratio of two integers, so it's a rational number and not irrational. Allrational numbers are real numbers, so this number is rational and real.

Yes , all rational numbers are real numbers, so this number is rational and real

Solve: 2x - 3 = 2x - 5.

Answers

2x-3 = 2x-5

because both sides have the same x value ( 2x) this problem has no solution

The value of the expression is A = 2x - 3 = 2x - 5 and the equation has no solution

Given data ,

Let the expression be represented as A

Now , the value of A is

2x - 3 = 2x - 5

The like terms of the equation are the terms which does not contain any variables and only the whole numbers

So , the simplified value of A is

On combining the like terms in the expression , we get

Subtracting 2x on both sides , we get

On simplifying the equation , we get

-3 ≠ -5

Therefore , the value of A is has no solution

Hence , the equation is undefined and has no solution

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Answer this pleaseeeeeeeee

Answers

first u have to do 5 exponent 10 then do the bottom than divide both answers

Advantage Airlines has a set fee for each checked bag, plus an additional charge for each pound the bag weighs. The cost is a linear fund of the weight?

What is the rate of change of this function?

Answers

Change in cost = 40 - 25 = 15 dollars

Change in weight = 50 - 20 = 30 pounds

Divide the two results to get 15/30 = 0.5

The rate of change is 0.5 dollars per pound meaning that each time you add a pound, the cost goes up by $0.50 (50 cents)

The rate of change of this function is 0.50.

Rates

Since Advantage Airlines has a set fee for each checked bag, plus an additional charge for each pound the bag weighs, to determine what is the rate of change of this function, knowing that 20 lbs cost $25 and 50 lbs cost $40, you must perform the following calculation:

25 / 20 = X1.25 = X40 / 50 = X0.8 = X1.25 - 0.8 = 0.45

Therefore, the rate of change of this function is 0.50.

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A 5-pound bag of apples cost $3.50. Use that rate, to complete the table to identify equivalent ratios, and then answer the questions. Apples *? 5 ? 15 Cost 0.70 3.50 7 ? Apples cost $ __ per pound.

Answers

Answer:

Cost 0.70 per pound.

Step-by-step explanation:

If you see the cost and the weight you can get the price per pound, so if 5 pounds cost $3.50, you can evaluate doing a rule of three:

[tex]\frac{3.50}{5}=\frac{x}{1}[/tex]

So if you clear X you´d get this:

[tex]x=\frac{(3.5)(1)}{5}[/tex]

[tex]x=0.70[/tex]

So the cost per pound is $0.70.

Now that you have the cost per pound you can do the equivalent ratios:

Cost---------------Apples

0.70---------------1 pound

3.5--------------- 5 pounds

7--------------- 10 pounds

Answer:

0.70 per pound.

Jenna bought a golf club that was marked down 20% from an original price of $75. If she paid 5% sales tax, what was the total cost of the golf club?

Answers

$63. She pays $60 for the club and $3 in taxes.

She pays $63 all together

answer the question in the image

Answers

Answer: The percentage of decrease is: " 33 ⅓ %" .
_____________________________________________
Explanation:
____________________________________________
Given:
____________________________________________
10 years ago, # of illiterate people = 150 lakhs;

"Now" ; # of illiterate people = 100 lakhs ;
____________________________________________
So; the decrease in the # of illiterate people = "(150 - 100) = 50 lakhs ;
____________________________________________
To calculate the "percentage of decrease" :
____________________________________________
The "percentage of decrease" =

{"decrease in the # of illiterate people"} / {"# of illiterate people started with"] ;

× 100 (percent).
__________________________________________________
= [tex] \frac{50}{150} [/tex] * 100 % ;

{Note that: [tex] \frac{50}{150} [/tex] = [tex] \frac{5}{15}[/tex] ;
→ The "zeros" cancel out ;

→ [tex] \frac{50}{150} [/tex] * 100 % ;

= [tex] \frac{5}{15}[/tex] * 100 ;

Note: [tex] \frac{5}{15}[/tex] = [tex] \frac{(5/5)}{(15/5)} [/tex] ;
= [tex] \frac{1}{3} [/tex] ;
__________________________________________________
→ [tex] \frac{1}{3}[/tex] * 100 = [tex] \frac{1}{3}[/tex] * [tex] \frac{100}{1}[/tex] ;
_________________________________________________________
= [tex] \frac{(1*100)}{(3*1)} [/tex] % ;

= [tex] \frac{(100)}{(3)} [/tex] % ;

= "(100 ÷ 3) % ;

= " 33 ⅓ % " .
_____________________________________________________
Answer: The percentage of decrease is: " 33 ⅓ %" .
_____________________________________________________

HELP ASSAP WITH THIS QUESTION

Answers

If I remember correctly judging from the 30 in the top left all you would have to is subtract 180 which is the angle of a straight line and subtract it from the 30 and it would be 150

That would be 180 - 30 = 150 degrees

Select the equation that contains the point (3, 6), and in which the slope equals 1

y + 6 = x + 6

y – 6 = x – 3

y + 6 = 3x

y – 6 = –3x

Answers

y-6=x-3 is thee answer

Westside middle school sold raffle tickets as a fundraiser. The tickets were priced at five for $20. How many tickets did the school so if it brought in a revenue of $2,500?

Answers

2,500/(20/5)
20/5=4
2,500/4=625

Westside middle school sold 125 raffle tickets as a fundraiser.

What is a numerical expression?

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Let, 'x' be the number of tickets sold.

Given, Each ticket costs $20 and the total revenue was $2500.

Therefore, The expression that represents this situation is,

20x = 2500.

x = 2500/20.

x = 125.

So, 125 tickets are sold.

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How do you solve these 2 problems

Answers

11.The answer is -13
13.The answer is -108

The height of water in a bathtub is shown shown in the graph. Find rate of change in inches per minute

Answers

1 minute and 30 seconds = 9 inches

Which of the following is a true statement?

A. When comparing integers, the integer with greater absolute value is always the greater integer.

B. When comparing two integers, the integer with greater absolute value is always the lesser integer.

C. When comparing two integers, the integer with the smaller absolute value is always the lesser integer.

D. When comparing two integers, the integer with the smaller absolute value is always the greater integer.

Answers

The answer could only be none of them, because they all depend on the numbers.

Answer:

The answer could be :

A. When comparing integers, the integer with greater absolute value is always the greater integer.

B. When comparing two integers, the integer with greater absolute value is always the lesser integer.

How do you join the bar you left weighs 45 pounds you add weight to the bar that are 10 pounds each if you add six weights to the bar how many pounds will you left

Answers

Hello!

45 + 10 + 6 = 61

So, your answer is 61.

I hope that was helpful! c:

87% of 41 is what? ‍♀️

Answers

the answer is 35.67. hope that helped

PLEASE HELP ASAP!!!! 10 POINTS!!!

what is the solution to the proportion

5/x =2/8

Answers

5/x=2/8, so to solve the proportion cross multiply, try to have no fraction basically, 2x=40, now solve for x, x=20

The answer is x=20 because when cross multiplied (40=2x) and divided (40/2=2x/2) you get 20=x

Hope this helps!

which of the following are equivalent to 0.625 625/1000 100/625 5/8 125/200 20/125

Answers

625/1000= 0.625

100/625= 0.16

5/8= 0.625

125/200= 0.625

20/125= 0.16

What is k/4+2-k=10.

Answers

i hope this help answer that

The width of a rectangle is 8 inches shorter than its length. The perimeter of the rectangle is 18 square cm. What are the length and width? Which equation models this problem?

A. 8 x L = 18 - 8
B. L(L - 8) = 18
C. L + (8 + 2L) = 18
D. 2L + 2 (L - 8) = 18

Answers

answer:
D. 2L+2(L-8) = 18

Answer:

Option D. 2[L + ( L-8)] = 18

Step-by-step explanation:

Let the length of rectangle is L and width is W

The width of a rectangle is 8 meters shorter than its length

Then equation will be W = L - 8 -----------(1)

The perimeter of the rectangle is 18 cm

Then P = 18 cm = 2 ( l + w )

2(l + w) = 18 ----------(2)

Now we substitute the value of W from equation (1) to equation (2)

2[L + ( L-8)] = 18

Option D. is the answer.

What’s 3x+6y=12 in the form y=mx+b

Answers

Hey there!

3x+6y=12

Divide both sides by 3 and your equation would now look like:
x+2y= 4
Move the x to the other side
2y= -x+4
Seprate the y by dividing both sides by 2
y= [tex] \frac{1}{2} [/tex]x+2

3x + 6y = 12

3x(-3x) + 6y = 12 (-3x)

6y = -3x + 12

6(y)/6 = (-3x + 12)/6

y = -1/2x + 2

hope this helps

What integer can be represented by 16 positive tiles and 26 negative tiles? (A) 10 (B) -10 (C) -6 (D) 42

Answers

the answer would be (B) -10 because 16 - 26 is -10

Final answer:

The integer that can be represented by 16 positive tiles and 26 negative tiles is -10.

Explanation:

One way to solve this problem is by considering the positive and negative tiles as positive and negative numbers, respectively. If we have 16 positive tiles and we subtract 26 negative tiles, we end up with a deficit of 10 negative tiles. Therefore, the integer that can be represented by these tiles is -10 (option B).

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Why could the mean of the data set below be misleading? ages of teachers: 29, 38, 39, 26, 29, 29, 39, 77, 38, 29

Answers

The mean of the problem is 37.3. All you need to do is add all the numbers together and then divide them by the amount of numbers. So I added them all and divided by 10.

Troys recipe for bagels makes 18 bagels per batch. Troy makes 2/3 batch of bagels. How many bagels does Troy make

Answers

18/3=6. There is two parts so 6x2=12.
he made 12.

When 12.393 and t are added together, the result is 20.463. What is the value of t?

Answers

t= 8.043 because 20.436 - 12.393 = 8.043

12.393+t=20.463
subtract 12.393 by both sides
t=8.07

A 56-inch board is to be cut into three pieces so that the second piece is twice as long as the first piece and the third piece is 5 times as long as the first piece. If x represents the length of the first piece, find the lengths of all three pieces.

Answers

X+2x+5x = 56. Divide 56 by 8 to get 7 = x. First=7. Second=14, third=35

The length of all the three pieces x,y,z will be 7 in, 14 in. and 35 in. respectively .

What is proportion ?

A proportion is an equation based on the equality of two ratios.

Let the three pieces of 56 in. board are cut into ratio x : y : z than it is given that second piece that is y equals 2x and third piece z equals 5x. Now solving for value of x :

[tex]\begin{aligned}x+y+z&=56\\x+2x+5x&=56\\8x&=56\\x&=7\end{aligned}[/tex]

Therefore, the length of all the three pieces x,y,z will be 7 in, 14 in. and 35 in. respectively .

Answers

y=x <2+4x+4
i think, hope it helps

What property is this? if -5x-1=-11, then -5x=-10

Answers

I believe X is equal to 2

Then, the answer would be x=-2.

a scale drawing has scale 1:20. in real life the length of a boat is 150m what is the length of the boat on the scale drawing. Answer in centimetres

Answers

To find the size of the scale, we must divide its size by 20 (because the scale is 1:20). Doing that we get 150/20=7.5m=750cm. Hope this helps!

Length of boat on the scale in centimeter is 750 cm.

Here,

A scale drawing has scale 1 : 20.

Length of boat = 150 m

We have to find length of boat on the scale in centimeter.

What is value of meter in centimeter?

The value of one meter is 100 centimeter.

Now,

A scale drawing has scale 1 : 20.

Length of boat = 150 m

Hence, Length of boat on the scale = 150 ÷ 20 = 7.5 meter

So, Length of boat on the scale in cm = 7.5m = 7.5 x 100 cm = 750 cm

Therefore, Length of boat on the scale in centimeter is 750 cm.

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evaluate n/6 when n=12

Answers

When asked to evaluate, you have to plug in the given value of n (in this case), into the given equation.

n/6 = ?
In order to find out ?, we need to know what n is.
Well, n = 12
So, plug in 12 for n
n/6 would now be written as 12/6 in order to be evaluated
Now, simplify.... What you get for 12/6 is the answer

Answer:

When [tex]$ n = 12 $, $ \frac{n}{6} $[/tex] equals [tex]$ 2 $.[/tex]

Explanation:

To evaluate [tex]$ \frac{n}{6} $[/tex] when [tex]$ n = 12 $[/tex] , simply substitute [tex]$ n = 12 $[/tex] into the expression:

[tex]\[ \frac{n}{6} = \frac{12}{6} \][/tex]

[tex]\[ \frac{n}{6} = 2 \][/tex]

So, when [tex]$ n = 12 $[/tex], [tex]$ \frac{n}{6} $[/tex] equals [tex]$ 2 $.[/tex]

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Is -b always, never, or sometimes a positive number? *urgent!*

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Is -b always, never, or sometimes a positive number?

urgent!