Mathematics Middle School

Please help me I don’t understand any of this you don’t have to explain it though just the answer

Answers

Answer 1

The answer to that is D

Answer 2

You combine like terms so 2/3x and -1/3x and -3 and -2

Related Questions

Solve the equation and show all of your steps!

8 + 3x = 14

Answers

Answer:

x=2

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Answer:

Step-by-step explanation:

This is a linear equation, and we will need to get the variable by itself.

Let's calculate!

[tex]8+3x=14\\3x=14-8\\3x=6[/tex]

Now we divide both sides by 3. Dividing 3 by 3 is just 1, and we don't need to write the 1, and 6 divided by 3 is two! So your equation will look like this:

[tex]3/3x = 6/3\\x=2\\[/tex]

Hope that helps! :)

Please Help !!!!!!!!!!!

Answers

Answer:

its A the cost increases $2.50

Step-by-step explanation:

The awnser is A it increases my 2.50

Pls answer.hurry pls.will give brainlest.Thank you

Answers

the new equation would be y= -1/3x + 2/3

yeah so you just have to 3-1/319

Select ALL expressions that are equivalent to -6. *

-7 + 13

-10 - (-4)

26 - 32

16 - 10

3 - ( - 3)

Answers

Answer:

The terms equivalent to - 6 are

- 10 - ( - 4)

26 - 32

Answer:

Only the 2nd and 3rd expressions are equal to -6

Step-by-step explanation:

The only way to do this is evaluating ot actually doing each expression:

Some key skills needed are subtraction with negative numbers, distributing the negative properly, and addition.

The first one is -7+13. This can be rewritten as 13-7. And this is 6, so it is not equal to -6. The 2nd one is -10-(-4). You have to distribute that minus sign after the -10 to the -4. Think of the subtraction symbol I mentioned as -1. -1(-4) is 4 since the negative signs cancel out. It would then be -10 + 4 which -6. So this works. This one is 26 - 32. You have to subtraction here. 26 - 32 is the opposite of 32 - 26. 32 - 26 is 6, so 26 - 32 would be -6. So the 3rd one is another one eqial to -6. This is simple subtraction. 16 - 10 is 6, so this one definitely does not work. This uses the same skill as number 2. Think of the minus sign after the positive 3 as a -1. -1(-3) is 3, so it would be 3 + 3 which is 6.

Only the 2nd and 3rd ones work. Hope you understood and have a nice day!!

What are the coordinates of the point (-9, 4) after a 90 degree rotation followed by a translation 3 units right?

Answers

(-9,1) should be the answer not completely sure tho

The coordinates of the point (-9, 4) after a 90 degree rotation followed by a translation 3 units right are (8,9) (for clockwise rotation) and (0,-9) (for counterclockwise rotation)

How does rotation by 90 degrees changes coordinates of a point if rotation is with respect to origin?

Let the point be having coordinates (x,y).

Case 1: If the point is in first quadrant:

Subcase: Clockwise rotation:

Then (x,y) → (y, -x)

Subcase: Counterclockwise rotation:

Then (x,y) → (-y, x)

Case 2: If the point is in second quadrant:

Subcase: Clockwise rotation:

Then (x,y) → (y, -x)

Subcase: Counterclockwise rotation:

Then (x,y) → (-y, x)

Case 3: If the point is in third quadrant:

Subcase: Clockwise rotation:

Then (x,y) → (y, -x)

Subcase: Counterclockwise rotation:

Then (x,y) → (-y, x)

Case 4: If the point is in fourth quadrant:

Subcase: Clockwise rotation:

Then (x,y) → (y, -x)

Subcase: Counterclockwise rotation:

Then (x,y) → (-y, x)

Case 5: For points on axes

You can take that point in any of the two surrounding quadrants. Example, if the point is on positive x axis, then it can taken as of first quadrant or fourth quadrant.

Case 6: On origin

No effect as we assumed rotation is being with respect to origin.

For this case, the point (-9,4) (present in second quadrant) is rotated by 90 degrees.

This rotation can be either clockwise, or counterclockwise.

Thus, for each case, we have:

case 1: Clockwise rotation:

Then (x,y) → (y, -x), therefore, (-9,4) → (4, 9)

case 2: Counterclockwise rotation:

Then (x,y) → (-y, x), therefore, (-9,4) → (-4, -9)

Now, when shifting to right by 4, that means, we're making no changes vertically, but old x-coordinates are increased by 4 to make them shift to right side as value of x increases as we go more and more to the right side with respect to the origin and in defaultly oriented cartesian space.

Thus, we have:

case 1: Clockwise rotation:

After translation of 4 units right:

(4, 9) → (4+4, 9) = (8,9)

case 2: Counterclockwise rotation:

After translation of 4 units right:

(-4, -9) → (-4+4, -9) = (0,-9)

Thus, the coordinates of the point (-9, 4) after a 90 degree rotation followed by a translation 3 units right are (8,9) (for clockwise rotation) and (0,-9) (for counterclockwise rotation)

Learn more about rotation of a point with respect to origin here:

https://brainly.com/question/18856342

Joe has a picture that measures 8 centimeters by 12 centimeters. He creates four enlargements of the picture. The
table below shows the width and the length of each enlargement.
What is the constant of proportionality between the width and the length of the pictures?

Answers

Answer:

1.5

Step-by-step explanation:

Because 15 divided by 10 equals 1.5

Giving brainliest please help with math

Answers

Answer:

the many solutions i think

The answer to your problem is option A).

Sorry I do not have time to explain but I will explain later. (If you graph the points while in slope intercept form, it will be easy. That way you can find out where the points intersect and that is your answer)

Hope you have a blessed day! :))

Answer first and I will mark brainliest

Answers

Answer:

A 6660 it decreases by 820 so 8,300-820=7480 and then 7480-820=6660

$6,660

Answer: The cost after 7 years should be $5740.

Step-by-step explanation:

If you find the ammoun that the value decreases each year, and multiply that by your 7 years you get your answer.

Jada had some dimes and quarters that had a total value of $12.50. The relationship between the number of dimes, d, and the number of quarters, q, can be expressed by the equation
01.d + 0.25q = 12.5.
1. If Jada has 4 quarters, how many dimes does she have?
2. If Jada has 10 quarters, how many dimes does she have?
3. Is the number of dimes a function of the number of quarters? If yes, write a rule (that starts with d =...) that you can use to determine the output, d, from a given input, q. If no, explain why not.

Answers

Hi! This might be long but I hope it helps!

1. 115. If q=4, then the equation tells us that 0.1d+(0.25)⋅4=12.5. Subtracting 1 from both sides gives 0.1d=11.5, so d=115.

2. 100. If q=10, then the equation tells us that 0.1d+(0.25)⋅10=12.5. Subtracting 2.5 from both sides gives 0.1d=10, so d=100.

3. Yes. If you know the number of quarters, then you can determine the number of dimes from the equation. We can even write the equation in a way that shows this: d=125−2.5q. The expression 125−2.5qrepresents the output—it is the rule that determines the output d from a given input q.

Answer:

1. 115. If q=4, then the equation tells us that 0.1d+(0.25)⋅4=12.5. Subtracting 1 from both sides gives 0.1d=11.5, so d=115.

2. 100. If q=10, then the equation tells us that 0.1d+(0.25)⋅10=12.5. Subtracting 2.5 from both sides gives 0.1d=10, so d=100.

3. Yes. If you know the number of quarters, then you can determine the number of dimes from the equation. We can even write the equation in a way that shows this: d=125−2.5q. The expression 125−2.5qrepresents the output—it is the rule that determines the output d from a given input q.

If Adam and his family travel for 8 hr. at a constant rate of 50 mph, how many miles will they drive on the first day of their vacation?

A. 120 mi.
B. 400 mi.
C. 660 mi.
D. 800 mi.

Answers

Answer:

B. 400 Miles

Step-by-step explanation:

Just take 8hrs and multiply it by 50mph to get an answer of 400.

Hope this helps :)

Answer:

B 400

Step-by-step explanation:

50 x 8 = 400

9. Each share of a certain stock lost a total of $1.50 in value over several weeks. Over how many weeks, w, did the stock lose value if each week it lost $0.25 per share? *

Answers

Answer:

Did you ever get the answer?

Step-by-step explanation:

Answer:

6 weeks

Step-by-step explanation:

your welcome :) Hope this helps you!

please mark me as brainliest if you can

plz plz plz plz help me 20 pt

Answers

Ok so do 3time4 which is 12 and add 2 which is 14 so 14/4 now 4/14 time 3/2 four time 2 is 8 and 14 times 2 is 28

Answer:

3 1/4 x 2/3=2.16

Step-by-step explanation:

A computer salesman gets a commission for each sale he makes. If he makes 1.0% commission on a sale of $2,000, how much commission does he make?
A) $2,020
B) $200
C) 20
D) $2,000

Answers

I believe it’s C)20 but if I’m wrong I’m sorry

B

1% commission=0.01
2000x0.01=200
therefore, B is the correct answer :))

Help ASAP

Which of the following correctly simplifies the expression 2 to the power of 2 multiplied by 6 to the power of 0 whole over 7, the whole cubed.? (5 points)

Question 4 options:

1)

2 to the power of 2 multiplied by 1 whole over 7, the whole cubed. = 2 to the power of 5 multiplied by 1 cubed over 7 cubed. = 32 over 343.

2)

2 to the power of 2 multiplied by 0 whole over 7, the whole cubed. = 2 to the power of 6 multiplied by 0 over 7 cubed. = 0

3)

2 to the power of 2 multiplied by 1 whole over 7, the whole cubed. = 2 to the power of 6 multiplied by 1 cubed over 7 cubed. = 64 over 343.

4)

2 to the power of 2 multiplied by 0 whole over 7, the whole cubed. = 2 to the power of 5 multiplied by 0 over 7 cubed. = 0

Answers

Answer:

(2^2 * 6^0) / 7)^3 =

(2^6 * 1^3) / 7^3 =

(64 * 1) / 343 =

64/343

Step-by-step explanation:

I hope this helps!

A bag of sugar contains 9 cups. A batch of muffins uses ¾ cups of sugar. How many batches of muffins can you make if you use all of the sugar?

Answers

Answer:

answer choices. 4. 3 4/6. 4 1/4. 1 1/4

Step-by-step explanation:

theres your answer my guy

Answer:

Step-by-step explanation:

9/(3/4) = x

It will be much easier to do and understand if you change 3/4 to 0.75. Now look at the problem

9/(0.75) = 12

12 batches of cookies can be made

HELP ME PLZ THIS IS SO IMPORTANT

Answers

Answer:

Step-by-step explanation:

4(6)/ 3+3

24/6

=4 Jushsgsghss

Answer:

Step-by-step explanation:

hope that helps :)))))

PLLSSSSS HELLLP

A candle burns down at the rate of 0.5 inches per hour. The original height of the candle was 6 inches.

Part A: Write a list of 6 ordered pairs to show the height of the candle in inches (y) as a function of time in hours (x) from the first hour after it started burning. For example, the point (0, 6) would represent a height of 6 inches after 0 hours. Explain how you obtained the ordered pairs. (5 points)

Part B: Is this relation a function? Justify your answer using the list of ordered pairs you created in Part A. (2 points)

Part C: If the rate at which the candle burnt was 0.3 inches per hour instead of 0.5 inches per hour, will the relation continue to be a function? Explain your answer using input and output values. (3 points)

Answers

Answer:

Part A: 0,6 1, 5.5 2,5.0 3,4.5 4,4.0 5,3.5 6,3.0

Step-by-step explanation:

Part B: This would be a function, it has a constant rate of change.

Part C: 0,6 1,5.7 2,5.4 3,5.1 4,4.8 5,4.5 6,4.2, this would still be a function, just at a slower rate of speed.

k12 students help please!!!!!!!!!!!!

Answers

Answer:

[tex] 35 \: {units}^{2} [/tex]

Step-by-step explanation:

Area of the triangle

[tex] = \frac{1}{2} \times 14 \times 5 \\ \\ = 7 \times 5 \\ \\ =35 \: {units}^{2} [/tex]

i just did that test and i’m pretty sure the answer is 35^2 :)

the speed of light is approximately 3 x 10 to the 8th power meters per second, while the speed of sound is approximately 3.4 meters per second. How many times faster is the speed of light than the speed of sound?

Answers

Answer:

The speed of light is 8.8x10⁵ times faster than the speed of sound.

Step-by-step explanation:

We can find how many times faster (R) is the speed of light than the speed of sound as follows:

[tex] R = \frac{c}{v_{s}} [/tex]

Where:

c: is the speed of light = 3x10⁸ m/s

[tex]v_{s}[/tex]: is the speed of sound = 340 m/s (the value given in the statement, 3.4 m/s, is wrong)

[tex]R = \frac{3 \cdot 10^{8} m/s}{340 m/s} = 8.8 \cdot 10^{5}[/tex]

Hence, the speed of light is 8.8x10⁵ times faster than the speed of sound.

I hope it helps you!

can somebody pls help me with this question I dont get it

Answers

Answer:

1. 195=6.50·c

2. 30

Step-by-step explanation:

195=6.5·c

Divide both sides by 6.5

30=c

What is the solution to this system of linear equations?
2x + y = 1
3x - y = -6
A. (-1,3)
B. (1,-1)
C. (2,3)
D. (5,0)

Answers

Answer:

A. (-1 , 3)

Step-by-step explanation:

2x + y = 1

plus 3x - y = -6

------------------------------

5x = -5

x = -1

y = 1 - (2*-1) = 3

I’m guessing the answer is a hopefully it’s right

Multiply. Write in simplest form. 1/2 * 24
Multiply. Write in simplest form. 2/13 * 26
Multiply. Write in simplest form. 2/5 * 17
Multiply. Write in simplest form. 18 * 1/4
Multiply. Write in simplest form. 1/15 *18

Answers

Answer:

1. 12

2. 4

3. 6.8

4. 4.5

5 1.2

Step-by-step explanation:

help me with this please

Answers

Answer:

The answer is 2 3/4

If you simplify 2 3/4 then its 5/6

Hope this helps

2 3/4 hope this helps!

A football team lost 5 yards on one play and gained 12 yards on the next play. Find the overall change in field position.

Answers

Answer:

60 yards

hope that helps

Step-by-step explanation:

It would be 60 yards

One leg of a right triangle is 3.2 centimeters long. The length of the second leg is 5.7 centimeters.

What is the length of the hypotenuse? Round to the nearest tenth if necessary.

A ) 2.5 cm

B ) 4.7 cm

C ) 8.9 cm

D ) 6.5 cm

Answers

a^2+ b^2 = C^2
Answer is 6.5cm

I think the answer is D

carl the cannonballer can make the bestest splashes of anyone at the local swimming pool. his splashes are legen...wait for it..dary! carl used to be the splash 40 people with cannon ball but now he has increased the number of people can be splash by 45%. what is the new number of people carl can splash?
A).53 people C).63 people
B).58 people D).68 people

Answers

Answer: is it B.

Explanation:

ASAPPPP WITH EXPLANATION!!!

Answers

urm i swear it’s like 10

K12 students help !!!!!!!!!!!!

Answers

D i believe bhshshdjdbx

Answer:

D i think

Step-by-step explanation:

Choose the inequality that represents the following graph. It's On khan academy

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Thats a closed dot, which means its greater than or equal to

morganville and newton are 24, miles apart. on a map. the two cities are 3 inches apart? What is the map scale?

Answers

Answer:

Step-by-step explanation:

we have 24/3=8

1 inch is 8 miles

1in:8miles

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