Mathematics Middle School

PLEASE HELP!! Which expression is equivalent to the given expression? 6y−12
6y−12

A)6y−12y−126y−12y−12

B)3y+3y−12

C)6y+6y−126y+6y−12

D)12y−6−6

Answers

Answer 1
I would have to go with B. i may be wrong so gie me one second to check the work.
Answer 2
Answer:

3y+3y−12 is the right option

Step-by-step explanation:

According to addition rules of algebra, only those terms can be added whose powers are same. Same terms while adding and subtracting at the same time cancel each other. As we can see that the second option 3y + 3y will give us -6y and then -12 is with it so it results 6y - 12 and that is the required function.

Related Questions

I need to find the LCD or LCM for this equation I Also need with n is please help ... 3/4n-18=1/4n-14

Answers

3/4n - 18 = 1/4n - 14

We need to isolate "n"

So, add 18 to both sides.

3/4n = 1/4n - 14 - 18

Then, subtract 1/4n from both sides.

3/4n - 1/4n = -14 - 18

*Note : Since "n" has the same denominator (bottom number in a fraction), then we simply need to look at the top numbers (numerators) and simplify those.

Simplify.

2/4n = -32

Then, multiply both sides by 4 so that we get rid of fractions.

4 · 2/4n = -32 · 4

Simplify.

2n = -128

Now, divide both sides by 2.

2 ÷ 2n = -128 ÷ 2

Simplify.

n = -64

~Hope I helped!~ 

:)

What is 3v+6v(4v-2v)

Answers

3v + 6v(4v - 2v)
3v + 6v(2v)
3v + 12v²

3v(4v + 1)   is your answer

hope this helps
9v(2v) which equal 18v

3868000000 in scientific notation

Answers

the scientific notation is 3.868x10^9

Fashion Phreddy buys 5 shirts and 3 ties for 91 on the bargain bus. Billy joe bob buys 8 shirts and 5 ties for 146. If all the shirts sold for the same price and each ties were priced identically. How much was each shirt and tie.

Answers

Assume that the price of the T-shirt is x and the price of the tie is y.

Fashion Phreddy buys 5 shirts and 3 ties for 91. This means that:
5x + 3y = 91 .........> equation I
5x = 91-3y
x = 18.2 - (3/5) y ..........> equation II
Billy joe bob buys 8 shirts and 5 ties for 146. This means that:
8x + 5y = 146 ...........> equation III

Substitute with equation II in equation III:
8(18.2 - (3/5) y) + 5y = 146
145.6 - 4.8y + 5y = 146
0.2y = 0.4
y = 2
Substitute in equation II to get the value of x:
x = 18.2 - (3/5) (2) = 17

Based on the above calculations:
price of T-shirt = x = 17
price of tie = y = 2 

the tax on a property with an assessed value of $120,000 is $300. find the tax on a property with an assessed value of $140,000.

Answers

the answer is $12,300 not $140,000
$12,300 is the answer

there are four cups in a quart and 4 quarts in a gallon how many cups are in a 5-gallon jug of water

Answers

80 cups is the answer to this problem
80 because 5 gallons is twenty quarts which converts to 80 cups

A triangle has base 15ft and area 60ft2. What is the height?j

Answers

The height is 4 feet. You calculate the area by length times height. So what multiplied by 15 is 60? Well, 15ft x 4ft = 60ft^2

find A common denominator of 1/6 and 1/9. rewrite the pair of fractions using common denominator.

Answers

Answer:

the pair would be 3/18 and 2/18

The pair of fractions, 1/6 and 1/9, can be rewritten as 3/18 and 2/18, respectively, using the common denominator of 18.

We have,

The prime factorization of 6 is 2 * 3.

The prime factorization of 9 is 3 * 3.

To find the LCM, take the highest power of each prime factor:

LCM = 2 * 3 * 3 = 18

The common denominator for 1/6 and 1/9 is 18.

To rewrite the fractions using the common denominator of 18:

1/6 = (1/6) * (3/3) = 3/18

1/9 = (1/9) * (2/2) = 2/18

Thus,

The pair of fractions, 1/6 and 1/9, can be rewritten as 3/18 and 2/18, respectively, using the common denominator of 18.

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A Town's population went from 25800 to 42600 in 15 years. What was the percentage of change?

Answers

25800/42600*100=60% increase

What is the distance between −131 and −87 on a number line?

Answers

THE distance betweem -131 and -87 is 44 

(-131) - (-87)= 44 

You dont add a negetive sign because you are finding the distance  

Evaluate 13 + ab, when a = 2.5 and b = 3. A. 46.5 B. 20.5 C. 18.5 D. 19.5

Answers

When variables are touching, that means after plugging them in, we multiply.
So the equation becomes 13 + axb 
Lets fill a and b in:
13+(2.5)(3)
In the order of operations (or PEMDAS),we must multiply first. 
2.5 x 3 =7.5
Then the equation becomes:
13 + 7.5
No you just add to get your answer which is (B)20.5
Hope this helps!

Answer:

the answer is b

a plane takes off at 6 am, traveling north at 270 mph. a jet takes iff at 7 am, traveling north at 460 mph. at what time will the jet overtake the plane?

Answers

Remember the distance-rate-time f[tex]t = 0.704 hrs[/tex]ormula:
[tex]d=rt[/tex]

Now, if the jet overtakes the plane, then at some point their distances will be the same. This means their rate * time will be equal.

Let's call the rate for the first plane, r1, and the rate for the second plane, r2. If we set time as t, then we can create ourselves a formula. However, we have to add one to the time of the first plane since it leaves one hour earlier. In the end, we should have something like this:
[tex]r_{1}(t+1)= r_{2}t [/tex]

If you plug in the values, you should get:
[tex]t = 0.704h[/tex]


For his phone service, jim pays a monthly fee of $11, and he pays an additional $0.04 per minute of use. The least he has been charged in a month is 61.84. What are the possible numbers of minutes he has used his phone in a month?

Answers

Well let's see first 61.84-11 as it is a constant which you then get 50.84. Now take the 50.84 and divide it by .04 per minute. which you should get 1271 minutes.

Answer: 1271 minutes

Which of the following has the least value?

Answers

it most likely going to be A.

Rosa scored 174,325points playing a video game.to the nearest ten thousand,how many points did Rosa scored?

Answers

170,000 points. Hope this helps!
170000 points should be the answer

find the coordinates of the orthocenter for a triangle with vertices (1,3) , (1,12) , (8,10)

Answers

the orthocenter is (3,10) I think
For convenience, I'll name the three points: A(1, 3), B(1,12), C(8,10)

The orthocenter is where the three altitudes of the triangle meet. That is, where the perpendicular lines from each vertex to the opposite side meet.

the goal in this case is to find out where the perpendicular line from C to AB, the perpendicular line from B to AC, and the perpendicular line form A to BC meet.
It is enough to find two perpendicular lines.

step one: find the equation of two perpendicular lines

find the slope of AB: m=(12-3)/(1-1), notice the denominator is 0, so the slope doesn't exist, that means AB is a vertical line parallel to the y axis, so the perpendicular line has a slope of o, a horizontal line. this horizontal line goes through C(8,10), so the equation is y=10
use the same method, slope of AC: (10-3)/(8-1)=1, so the perpendicular line from B to AC has a slope of -1. y=-x+b
Now use the point B(1,12) to find b: 12=-1+b =>b=13

so the equation for this line is y=-x+13

Step two: solve the system of equations: y=10
                                                                  y=-x+13
we get x=3, y=10, which are the coordinates of the orthocenter.

I've also found the equation of the third line, which is y=(7/2)x-1/2, the point (3,10) is also on this line. So it works!

1. simplify 6^2+ 3^2
2. 4^3+ 4.5

Answers

1. 45
2. 68.5


please mark me brainliest!!!
1. Use the correct order of operations and do the exponents first.
Remember that an exponent of 2 means to multiply the base by itself, not multiply the base by 2.

6^2+ 3^2 = 6 * 6 + 3 * 3 = 36 + 9 = 45

2. 4^3 + 4.5 = 4 * 4 * 4 + 4.5 = 64 + 4.5 = 68.5

how do you solve p= 6s solve for s

Answers

Answer is s=p/6 (fraction) 

  p=6s
÷6    ÷6        divide 6 by both side
p/6=s

The expression can be written in terms of p after making the subject as s the expression is s = p/6.

What is an expression?

It is defined as the combination of constants and variables with mathematical operators.

It is given that:

The expression is:

p = 6s

To solve the above expression in terms of p make the subject as s

As we know, the arithmetic operation can be defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.

Divide by 6 on both sides:

p/6 = 6s/6

p/6 = s

Or

s = p/6

Thus, the expression can be written in terms of p after making the subject as s the expression is s = p/6.

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Which is a true statement about the line x − 4y = 8?




a


The y-intercept of the line is (0, 2).


b


The line passes through the origin.


c


The slope of the line is 1/4


d


The x-intercept of the line is (2, 0).

Answers

the y-intercept of the line is (0, -2), the x-intercept is (8, 0). the slope of the line is in fact 1/4

so your answer is C.

hope this helps, God bless!

What is the product in lowest terms?
1/6 x 5/7. ( / means fractions)

1. 6/13
2. 5/13
3. 1/7
4. 5/42

Thank you so much, if you could answer as fast and best as you can you really are very helpful!

Answers

Hi again!

Your answer is D. 5/42. Here's how we got that.

1) Multiply across. 1 * 5 / 6 * 7.

2) 1 * 5 = 5. 6 * 7 = 42.

Put solved form of 1 * 5 and 6 * 7 into fraction.

5 / 42.

Hope this helps! ☺♥

write two verbal expressions for n-5

Answers

A number less than five

OR

n minus five

two sides of a triangle have lengths of 10 and 15. Between what two numbers does the length of the third side lie?

Answers

Since the sum of two sides of a triangle must be greater than the third. You must subtract the two known to get the lower bound. And add the two to get the upper bound. This will give you between 5 and 25

After a 20% increase the new price of radio is $78.00. What was the original price of the radio

Answers

The original price was 65. 

78/ 1.2 = 65

A square pyramid has a height “h” and a base with side length “b”. The side lengths of the base increase by 50% write a formula for the volume of the new pyramid in terms of b and h.

Answers

1/2 (b*h) is the formula for finding base and hight. Since its 50% i would say its a dilation.
[(h×b)×1.5]=v
h-height
b-base
1.5- an increase
v- volume

8+x/-9=9

Please solve this equation and show your work!

Answers

8+(x/-9)=9               subtract 8 

x/-9= 1                     multiply by -9 

x= -9

(8+x)/-9=9
-9×9=8+x

-81-8=x

X=-89

Michell bought 5 packs of crayons for $13.75 what's the coust of one pack?

Answers

All you would do is divide for this problem so, 


13.75 ÷ 5 = 2.75

So one pack would cost 2.75

(:
The answer is two dollars and seventy five cents

Which describes the difference between the two sequences? First Sequence: 1, 6, 36, 216 ... Second Sequence: 3, 6, 9, 12, ...

Answers

The difference between the sequence is that the second sequence counts by 3 and the 1st sequence it doesn’t
sequence one multiplies each number by 6 to get the next number in the sequence while the second sequence adds 3 to each number to get the next in the sequence.

I need help ..........

Answers

Answer:

The answer is B

Step-by-step explanation:

You need to graph the equation from the left of equality sign which is y=x*1/6 and the other is -2x+5

The first has a point (0,0) and other point could be (6,1) from there you can have your graph

The second has one point in (2.5, 0) and (0,5)

help i dont get this question!

Answers

Because the perimeter is all the sides added:

P = side + side + side
4x + 3y = x + y + x + y + s
2x + y = s

Hope this helps!

A ladder is leaning against the side of a building. The building and the ground form a right angle. How high on the building will the ladder touch if the ladder is 10 ft long and the base of the ladder is 6 ft from the base of the building?

Answers

B) 
8 ft 
6, 8, 10 are lengths of a Pythagorean triple 
6^2 + 8^2 = 10^2

The height of wall where the ladder touches it is 8 ft.

Given that, a ladder is leaned against a wall, the building and the ground form a right angle, we need to find that how high on the building will the ladder touch,

So, here using the Pythagoras theorem,

Formula =

a²+b² = c²,  a, b and c are the sides of a right triangle,

Here, c = 10 ft, b = 6 ft we need to find the a,

a²+6² = 10²

a² = 100-36

a² = 64

a = 8

Hence, the height of the wall where the ladder touches it is 8 ft.

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