Mathematics Middle School

thanks for answering these 1. -2(n-6)
2. (5b-4)1/5

3. 2/3(6y+9)

4. 4t-7t

5. -18v squared + 23v squared

6. 13q-30q

Answers

Answer 1
1) -2(n-6)

-2n+12


2) (5b-4)1/5
(5b-4)(1/5)
(5b)(1/5)+(-4)(1/5)

b+-4/5


3) 2/3(6y+9)
(2/3)(6y)+(2/3)(9)

4y+6


4) 4t-7t

-3t


5) -18v^2+23v^2

5v^2


6) 13q-30q

-17q


Related Questions

Eric conducted a survey of the cars in four parking lots and wrote the following observations: 15 of the 36 cars in lot 1 were blue 43 of the 92 cars in lot 2 were blue 12 of the 30 cars in lot 3 were blue 32 of the 52 cars in lot 4 were blue based on the survey, which parking lot had the greatest present age of blue cars

Answers

Lot One:
15 divided by 36 = 0.4166  convert to % by moving the decimal two places to the right.  round if needed. 
Lot One = 41.66 %

Lot Two:
43 divided by 92 = 0.4673
Lot One = 46.73 %

Lot Three:
12 divided by 30 = 0.4
Lot Three = 40%

Lot Four:
32 divided by 52 = 0.6153
Lot Four = 61.53 %

Lot Four had the greatest % of Blue cars.

The percentage of blue cars in the lot is the ratio of the number of blue cars to the total number of cars in each lot ; Hence, lot D has the greatest percentage of blue cars

Percentage of blue cars in each lot :

Number of Blue cars / total number of cars

Lot A :

% blue cars = 15 / 36 = 0.4167

Lot B :

% blue cars = 43 / 92 = 0.4673

Lot C :

% blue cars = 12 / 30 = 0.40

Lot D :

% blue cars = 32 / 52 = 0.615

Therefore, lot D has the greatest percentage of blue cars.

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Jeremy is practicing some tricks on his skateboard. One trick takes him forward 5 feet, then he flips around and moves backwards 7.2 feet, then he moves forward again for 2.2 feet. A: What expression could be used to find how far Jeremy is from his starting position when he finishes the trick? B: How far from his starting point is he when he finishes the trick?

Answers

5-7.2+2.2=0 he is in the same place he started

Answer: 5ft - 7.2ft +2.2 ft = 0

When he finishes the trick he will be in the starting point.

Step-by-step explanation:

Hi, to write the expression we have to analyze the information given:

Forward: 5 feet Backwards: 7.2 feet Forward: 2.2 feet

So, we simply have to sum the tricks that takes him forward and subtract the tricks that take him backwards.

Mathematically speaking:

5ft - 7.2ft +2.2 ft = 0

When he finishes the trick he will be in the starting point, because the expression equals 0.

Feel free to ask for more if it´s necessary or if you did not understand something.

Goldbach''s Conjecture is a famous conjecture that has never been proven true or false. The conjecture states that every even number. except 2, can be written as the sum of two prime numbers. For example, 16 can be written as 5 + 11.

Answers

has been proven TRUE.... hope it helps buddy have a great day hope you pass

Yes this is true.
Hope this Helped
Mark me Brainliest!

Solve by making an equation

The first side of a triangle is twice the length of the second side; the third side is 20 feet less than three times the second side. The perimeter of the triangle is 106 feet. Find the three sides.
Answer:

Answers

Let the second side be x


then,
first side = twice the length of the second side
= 2x

third side = 20 feet less than three times the second side
3 (second side ) - 20
= 3 (2x) -20
= 6x - 20



perimete of a triangle = sum of all sides,

substitute the values we know,
and you'll be left with this equation

106 = x + 2x + 6x - 20
106+ 20 = 9x
126 = 9x
126/9 = x
14 = x

so,

measure of second side = x = 14 feet

measure of first side = 2x = 2 (14) = 28 feet

measure of thurd side = 6x - 20 = 6 (14)-20 = 84- 20 = 64 feet.

the three sides of the triangle are 42 feet, 21 feet, and 43 feet,

Let's denote the second side of the triangle as ( x ). According to the problem, the first side is twice the length of the second side, which makes it ( 2x). The third side is 20 feet less than three times the second side, so it is ( 3x - 20 ).

Now, we can write the equation for the perimeter of the triangle:

[tex]\[ \text{Perimeter} = \text{First side} + \text{Second side} + \text{Third side} \][/tex]

[ 106 = 2x + x + (3x - 20) ]

Now, combine like terms and solve for \( x \):

[ 106 = 6x - 20 ]

Add 20 to both sides:

[ 6x = 126 ]

Divide both sides by 6:

[ x = 21 ]

So, the second side is 21 feet. Using this, we can find the other two sides:

First side = [tex]\( 2x = 2 \times 21 = 42 \) feet[/tex]

Third side = [tex]\( 3x - 20 = 3 \times 21 - 20 = 63 - 20 = 43 \) feet[/tex]

Therefore, the three sides of the triangle are 42 feet, 21 feet, and 43 feet, respectively.

To recap the process:

1. Let ( x ) represent the second side of the triangle.

2. Write the equation for the perimeter using the given information.

3. Simplify the equation and solve for ( x ).

4. Substitute the value of ( x ) back into the expressions for the first and third sides to find their lengths.

5. Confirm the final answer by checking that the sum of the three sides equals the given perimeter.

complete question

Solve by making an equation

The first side of a triangle is twice the length of the second side; the third side is 20 feet less than three times the second side. The perimeter of the triangle is 106 feet. Find the three sides.

Answer:

PLEASE HELP I WILL GIVE 50 POINTS
Using the distributive property, an expression equivalent to 48 + 30 is
5(6 + 8).
(6)(8) + (3)(10).
(3)(16) + (6)(5).
6(8 + 5).

Answers

48+30 is 78, so we need to find the equation that is equal to that.
The first one is not enough, the second one is too much, and the third one is too much as well. The fourth on is the answer.

Answer:

Step-by-step explanation:

78

Anna saves 5/8 of her money. What percent of her money does Anna save?

Answers

 the amnwer is 1.6. all you do is 8 dived by 5

Anna would have saved 62.5% of her money.

Which state ment is not true of athe function?
A. The independent variable is x.
B. the dependent variable is y
C. Whent he input is 1 the output is -2
D. When the input is 8 the output is 32

Answers

d I think that's it it's d

Suppose the Willard gold nugget was turned into 4 equal sized gold bricks. If one of the bricks was sold how many ounces of the Willard nugget would be left?

Answers

788/4= 197; 197 ounces for each golden brick. 

---- 197x4= 788 so if 197 oz was sold then 788-197= 591oz.

 > There would only be 591 oz left

The number of ounces left after one brick is sold is 591.

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Willard gold nuggets = 788 ounces

The number of equal-sized bricks = 4

Now,

The number of ounces in each of the 4 bricks.

= 788/4

= 197 ounces

Number of bricks sold = 1

The remaining ounces.

= 788 - 197

= 591 ounces

Thus,

The number of ounces left is 591.

Learn more about expressions here:

https://brainly.com/question/3118662

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how do you write S is the set of natural numbers that are less than 8 in roster form

Answers

In mathematics, the roster form is when we call a group of set members that is placed inside between brackets, and is separated by commas. So in this case, natural numbers which are less than 8 are 1 to 7, hence the roster form is:

{1, 2, 3, 4, 5, 6, 7}

Eight members of the Math club equally shared three pizzas. Expressed as a fraction,whAt part of a pizza did each member receive ?

Answers

3/8 of a pizza.

If you divide each pizza into eight parts, each member would receive 1/8 of one pizza. Since there are three pizzas, each member would receive three 1/8 of a pizza, or 3/8.

You can prove this answer by multiplying 3/8 by 8, to get 24/8 simplified to 3.

Need help with Solving for X

Answers

5+x+(-2)= - 8
or,5+x-2+8=0
or,x+11=0
or,x= -11


0.199
to the nearest hundredth.

Answers

0.20 would  be the answer.
The number places on a number go as follows starting at 0. and going to the right
ones, tenths, hundredth
This means that 0.00 is the hundredth place (the bolded 0). Since you round a 9 up one, this makes the 1 in the tenths place go to a 2 and the hundredth go to a 0

solve the system by graphing y=2x^2+3x+1. Y=2x+1

Answers

the solution to the system of equations by graphing is [tex]\( (0,1), (-5/2,6) \)[/tex]

The correct option is (C).

The generated image above represents a graphical solution to the system of equations given:

[tex]\[ y = 2x^2 + 3x + 1 \][/tex]

[tex]\[ y = -2x + 1 \][/tex]

However, the graph does not clearly show the exact points of intersection between the parabola and the line. To find the solutions accurately, we would typically set the two equations equal to each other and solve for [tex]\( x \)[/tex]:

[tex]\[ 2x^2 + 3x + 1 = -2x + 1 \][/tex]

Solving this equation algebraically will give us the [tex]\( x \)[/tex]-coordinates of the points of intersection. The corresponding [tex]\( y \)[/tex]-values can then be found by substituting these [tex]\( x \)[/tex]-values back into either of the original equations.

Since I cannot perform this algebraic computation at the moment, you can solve the equation using the following steps:

1. Move all terms to one side of the equation to set it to zero.

2. Solve the resulting quadratic equation, either by factoring, completing the square, or using the quadratic formula.

3. Substitute the [tex]\( x \)[/tex]-values back into one of the original equations to find the [tex]\( y \)[/tex]-values.

Therefore, the correct option that represents the solution to the system of equations by graphing is:

C. [tex]\( (0,1), (-5/2,6) \)[/tex]

complete question given below:

Solve the system by graphing. y=2x^2+3x+1 y=-2x+1

A. (1,3), (4,7)

B. (1,3), (1/2,3)

C. (0,1), (-5/2,6)

D. (-5,5), (4,-2)

Name all segments skew to GF.
D is the wrong answer.

Answers

i would go with A honestly...

how do you write the number 7.04 in expanded form?

Answers

7.04 = (7 x 1) + (0/10) + (4/100)
hmmmm..
its been a while since ive done this... lol
so if i remember correctly...
7.04...
oh boy... gimmie a min to look back at my math books....

Two more than four times the sum of yesterday's high temperatures in degrees Fahrenheit and 7 is equal to the current temperature in degrees Fahrenheit.
a. Write an expression for the current temperature using t as yesterday's high temperature in your expression.
b. simplify the expression
c. if yesterday's high temperature was 3 degrees Fahrenheit, what is the current temperature?

Answers

4(t + 7) + 2 <== current temp expression

4t + 28 + 2 =
4t + 30 <=== simplified

if yesterdays high temp is 3...
4t + 30 =
4(3) + 30 =
12 + 30 =
42 Fahrenheit <=== current temp

500 - 137 = to what

Answers

if the question your asking is what is 500-137=? then the answer is 363

If u subtract 500 from 137 you get 363 


Remember to stay litty

is 660 ten times as many as 600?

Answers

Im pretty sure (like 99.9999999% sure) that 660 is not 10 times as much as 600 because when you multiply 600 by 10 you don't get 660. You get 6000.
2b. 660 is not 10 times as much as 600 it's like 1.1 times as much

Bryce and Rachel are collecting canned goods for the local food bank. Bryce's goal is to collect 32 items. Rachel's goal is to collect 24 items. If Rachel and Bryce each meet their goal, what fraction of Bryce's goal does Rachel collect?

Answers

I think the fraction would be 3/4.

Rachel collects 3/4 or 75% of Bryce's goal if they both meet their goals in the canned goods drive

The question involves determining what fraction of Bryce's goal Rachel collects if they both meet their personal goals for a canned goods drive. Bryce's goal is to collect 32 items, and Rachel's goal is to collect 24 items. To find the fraction of Bryce's goal that Rachel collects, you divide Rachel's goal by Bryce's goal.

Here's the calculation:

Rachel's collection / Bryce's collection = 24 / 32 = 3/4

This means that Rachel collects 3/4 or 75% of the number of items that Bryce collects

How do you convert 10/6 into a mixed number

Answers

Well, First you want to find out how many times six can go into ten. Since its only once, you immediately get the number 1 as your whole number. Now because you've taken six out of ten you're left with 4/6. The mixed number would be 1 and 4/6 or 1 and 2/3 if you're simplifying
Hi. To convert 10/6 into a decimal, you simply divide the bottom into the top. In this case, it would be 10 ÷ 6.

6 can go into 10 1 time and will have a remainder of 4. You bring the 4 up and place the 6 under it. This will give you the mixed number of 1 4/6 which can be reduced to 1 2/3

See the attached for a visual. Hope this helps. If you have further questions, please don't hesitate to ask.

Take care,
Diana

If s is true and j is false, is the following true or false (~s v j) ^ (s v~ j)

Answers

s = true
~s = false
-------------
j = false
~j = true
-------------
~s = false and j = false, so,
~s v j = (false) v (false)
~s v j = false
-------------
Similarly,
s v ~j = (true) v (true)
s v ~j = true
-------------
We have 
~s v j = false
and 
s v ~j = true
which lead to this when we conjunct the two logical expressions
(~s v j) ^ (s v ~j) = (false) ^ (true)
(~s v j) ^ (s v ~j) = false
-------------
-------------
The final answer is false

The directions: Write an equation in point-slope form of the line that passes through the given point and has the given slope m. The problem: (2,1), m=2

Answers

point slope form y- y1 = m(x- x1) coordinates are (2,1) m=2

so the equation becomes y-1= 2(x-2)

A scooter travels 30 feee in 2 seconds.

What is the speed of the scooter in feet per second?

(If you get the question right you will be marked as brainliest.)

Answers

30 ft in 2 seconds = 30/2 = 15 ft per second

We have that for the Question "A scooter travels 30 ft in 2 seconds.  

What is the speed of the scooter in feet per second?

" it can be said that the speed of the scooter in feet per second is mathematically given as

V=15ft/s

From the question we are told

A scooter travels 30 ft in 2 seconds.  

What is the speed of the scooter in feet per second?

Generally the equation for the speed of the scooter in feet per second is mathematically given as

[tex]V=\frac{v}{s}\\\\Therefore\\\\V=\frac{v}{s}\\\\V=\frac{30}{2}\\\\[/tex]

V=15ft/s

Therefore

the speed of the scooter in feet per second is mathematically given as

V=15ft/s

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math question down below

Answers

Hi Andres!

[tex] (5\frac{1}{4})/( -2\frac{1}{2}) =(20+1)/4/- (4+1)/2 = 21/4/-5/2 =-21/10 = -2.1[/tex]

how can you evaluate |-5|

Answers

The absolute value is 5

Identify the like terms.



2a, –2b, 2ab, –13ab



A.


2a, –2b, 2ab


B.


2ab, –13ab


C.


2a, 2ab


D.


2a, –2b

Answers

B.


2ab, –13ab


hope this helps

A recipe for a smoothie calls for 0.75 pounds of strawberries if Kerry has 3.15 pounds of strawberries how many batches of the recipe can she make

Answers

She can Make 4 Batches :D
with .15 of a pound left to spare.

Solve for c.

a=11+4b−4c

A)c=a+b-11/-4
B)c=a+4b+11/-4
C)c=a-4b-11/-4
D)c=a-b+11/-4

Answers

a=11+4b-4c
a+4c=11+4b
4c=4b-a+11
c=(4b-a+11)/4
c=(a-4b-11)/-4
so the answer is 'C'

the answer is c

i hope it helped!

Evaluate 11p – 2 for p = 5.

Answers

(11)(5) - 2

Parenthesis show that you need to multiply 

11*5 = 55

55 - 2 = 53

your answer should be 53.

I hope this helps you! :)
11 times 5= 55
55- 2= 53

what is the area of the figure?

Answers

Notice that the triangle is a right isosceles triangle, because the given angle measures are 45° and 90°, so the third angle measure is 180°-90°-45°=45°.

The length of the hypotenuse is 24 ft. Let the side lengths of the 2 equal sides be a.


By the Pythagorean theorem we have:

[tex]a^2+a^2=24^2[/tex]

thus

[tex]2a^2=24^2[/tex]

divide both sides by 2, and take the square root:

[tex]a= \frac{24}{ \sqrt{2} } = \frac{24 \sqrt{2} }{2}=12 \sqrt{2} [/tex]


The area of the triangle is given by the formula:

(1/2)*side*side, so the area of the triangle is :


(1/2)*[tex]12 \sqrt{2}[/tex]*[tex]12 \sqrt{2}[/tex]=144 (square units)


Answer: 144 square units


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