Mathematics Middle School

need help fast! Thank you!

Answers

Answer 1

Answer:

20, 12, and 16

Step-by-step explanation:

So we know that y=4x

This basically means y=4*x

So we can plug the values for x shown on the table below to find y.

when x=5:

y=4*5

y=20

So for the first fill in box, its 20

Next is x=3:

y=4*3

So for the next fill in box it is 12.

Finally we have x=4:

y=4*4

y=16

So the for the finally box it is 16.

Hope this helps!

Answer 2

Answer:

5 - 20

3 - 12

4 - 16

Step-by-step explanation:

Hope this helps

Related Questions

How do I add a percentage (%) tip to a total of a bill? (Ex - Total : 3.00 with a %18 tip)

Answers

To calculate a gratuity or tip on any calculator it is a simple multiplication. In general, the tip amount is the cost times 0.xx and your total including tip, is the cost times 1.xx where xx = the percent you want to leave. If you want to leave a 20% tip, multiply the cost by 0.20 to get the tip amount or multiply the cost by 1.20 to get the total including tip. If you want to leave a 18% tip, multiply the cost by 0.18 to get the tip amount or multiply the cost by 1.18 to get the total including tip.

Let's say you and a friend had dinner that cost $26.50. You had good service and want to leave an 18% gratuity. Put the percentage in decimal form (0.18) then multiply the cost by this number.

26.50 * 0.18 = 4.77. So your tip is $4.77.

An easy way to get the total amount, dinner plus tip, is to multiply the total by 1.18. 26.50 * 1.18 = 31.27. This works mathematically because you want to know your original cost plus the tip which is written as 26.50 + (26.50 * 0.18) = ? Factoring out the 26.50 from this equation you get 26.50 * (1 + 0.18) = 26.50 * 1.18.

How to calculate a tip in your head

You can get a good approximation of a tip by doing it in your head this way.

You can find 10% of your bill by moving the decimal one place to the left. If 26.50 is 100% then 10% is 2.65. Since 20% is 2 times 10%, 20% of the bill is 2.65 + 2.65 = 5.30. Now you know the tip you could leave ranging from poor to good, $2.65 to $5.30. To find 15%, halfway in between, we know 15% is 10% plus 1/2 of 10% (5%). 2.65 plus about 1.30 is 3.95.

Now you have

10% is 2.65 - by moving decimal 1 place left

15% is 3.95 - 10% + 1/2 of 10%

20% is 5.30 - 10% * 2

This is plenty of information to make a good guess at the tip amount you should leave. If you decide on about 18%, 4.50 to 5.00 would be a safe guess.

Hope this helps!!! Please mark Brainliest because no matter what you are the Brainliest of all!

Answer:

put to percentage as a decimal (ex. 0.18) then you add that to the total amount

pleassse Help thanksss

Answers

Answer:

365 dollars

Step-by-step explanation:

Select all ratios equivalent to 20:4 A. 8:1 B. 10:2 C. 15:3

Answers

Answer:

b 10:2 ,, c 15:3

Step-by-step explanation:

20:4 by dividing 4 from both sides you get the ratio

5 :1

so simplify the other ratios and find one that equals this one

A is already in simplest form 8:1

so it's refused

B 10:2 by dividing 2 from both sides you get the ratio 5 :1

C 15:3 by dividing 3 from both sides you get the ratio 5 :1

so both B and C are correct answers

Hope this helped! :)

B&C because the lowest you can go is 5:1 and if multiplied by 2 it’s 10:2 and times three is 15:3

Which data set could represent the scores shown in the histogram?

Answers

Answer:

Step-by-step explanation:

B, because judging the graph it looks like the numbers are the closest to the data shown.

It is C because each score you count is matching with the histogram. You just count how many are in the 60-70 and match it to the graph.

The base of a rectangular pyramid has dimensions 3 feet by 9 feet. The height of the pyramid is 11 feet.

What is the volume of the rectangular pyramid in cubic feet? Answer below, no units.

Answers

Answer:

Step-by-step explanation:

1. rectangular pyramid formula:

2. V=lwh/3

3. 99 = (3)(9)(11)/3

Your answer should be 99

Can anyone help out with this?

Answer:Equation: V = πr^2h

Steps:

1. Calculate the volume of each sphere: V = 4/3πr^3 = 4/3π(2cm)^3 = 33.51 cm^3

2. Calculate the total volume of the 3 spheres: 3 x 33.51 cm^3 = 100.53 cm^3

3. Calculate the volume of the cylinder not taken up with spheres: 143^3 cm^3 - 100.53 cm^3 = 42.47 cm^3

Step-by-step explanation:

pls mark brainliest if its correct !!

Simplify |-33|
A.
0

B.
-33

C.
1

D.
33

Answers

Answer:

D. 33 will be your answer

Step-by-step explanation:

hope it helps...

Answer:

D. 33

Step-by-step explanation:

The two lines closing -33 in are the absolute value lines. Absolute value means how far is that number from 0. Since distance HAS to be positive, the answer is always the number inside the two lines, but positive. No matter if it starts off as negative or positive.

helppppp meeeeee:))))))))))))))))))))))))

Answers

Answer:yes

Step-by-step explanation:

is so yes so if the 50 it was the 40 so then they it yes

Answer:

19.5°

Step-by-step explanation:

The sum of any 3 angles of a triangle is 180.

That being so 33.5 + 127 + F = 180.

33.5 +127 + F - 33.5 = 180 - 33.5

127 + F = 146.5

127 + F - 127 = 146.5 - 127

F = 19.5

Label the tick marks

Answers

For the first one it’s 1/4s so the best number would be 3 1/4 then 3 1/2 or 3 2/4 and so fourth... the second line is 8ths so just like the first you will start out with the lowest which would be 1/8 all the way up to 7/8...... the last like is halves so you would start with 1/2 all the way to the end of the row

Find the missing length. Round to the nearest tenth, if necessary.

Answers

the answer is 19.4. the equation is a^2 + b^2 = c^2

What is the mean of the data? Hours of TV Watched on Saturdays X Х XX 4 5 6 7 Hours 5.5 7 4 9

Answers

Answer: 5.9375

Step-by-step explanation:

The average (mean) is equal to the sum of all the data values divided by the count of values in the data set.

Average = Sum / Count

= 47.5 / 8

= 5.9375

Please help me fast!
Illl give brainly

Answers

Answer:

2,050 = 2.05L and 2,050mL

7,002 = 7.002L and 7,001mL

10,050 = 10.05L and 10,050mL

Step-by-step explanation:

Answer:

2,050 = 2.05L and 2,050mL

7,002 = 7.002L and 7,001mL

10,050 = 10.05L and 10,050mL

Step-by-step explanation:

How many more vertices does a rectangular prism have, compared to triangular pyramid?

rectangular prism and triangular pyramid
A. 6
B. 4
C. 5
D. 7

Answers

A rectangular prism has 8 vertices and a triangular prism has 4, so the answer would be B) 4

There is a closed carton of eggs in Mai's refrigerator. The carton contains e eggs and it can hold 12 eggs. What does the inequality e<12 mean in this context?

Answers

Answer:

That the number of eggs (e) in the carton is less than 12

Step-by-step explanation:

A pentagonal pyramid holds 30 cubic cm of sand. The area of the pentagon equals 9 square cm. Find the pyramid's height.

Answers

Answer =3.333333333 is the answer

30cm divided by 9 cm to get ur answer
In this case it is recurring

Answer:

it should be 3.3 if rounded

Step-by-step explanation:

A store pays $275 for a table and marks the price up by 50%. What is the amount of the mark-up ?

Answers

Answer:

$387.50

Step-by-step explanation:

You can get the answer 2 different ways. First you could take $275/2 = $137.50

$275*0.50 = 137.50

add $275+137.50 =$387.50

$412.50 is your answer

What is

(n+8) + (n−12)

Answers

Answer:

2n - 4.

Step-by-step explanation:

(n+8) + (n−12)

= n + 8 + n - 12

= n + n + 8 - 12

= 2n - 4.

Answer:

2n-4

Step-by-step explanation:

add like terms. n+n=2n 8+-12=-4

2n-4

Plz help will be marked BRAINLIEST
And thanks !

Answers

1. X = 7
2. X=6
3. X=-8
4. X= 3 (I round it to the nearest number of 2.6)

1. -4x= -28
28/4= 7
x=7

2. 4(x+1)= -28
4x+4=-28
-28-4= -32
-32/4= -8
x=-8

3. x-7= -1
x= 6
in these types of question all you have to is subtract one from the other number.

4. -3x + 7= -1
-1-7=-8
-8/-3
2.6 repeating (2.666666666)

how can you find the vertex of a parabola if you know it's focus and directrix? in my equation, the focus is (6,4) and the directrix is y=-2

Answers

Answer:

The vertex would be (6,1)

Step-by-step explanation:

The vertex is the midway between the focus and the directrix. The X of the vertex would be the same but to get the Y of the vertex you would need to take the average of the Y values. (6, 4 + (-2)/2) (6,1)

The surface of a table to be built will be in the shape shown below. The distance from the center of the shape to the center of each side is 8.7 inches and the length of each side is 10 inches.

A hexagon labeled ABCDEF is shown will all 6 sides equal in length. ED is labeled as 10 inches. A perpendicular is drawn from the center of the hexagon to the side ED. This perpendicular is labeled as 8.7 inches.

Part A: Describe how you can decompose this shape into triangles. (2 points)

Part B: What would be the area of each triangle? Show every step of your work. (5 points)

Part C: Using your answers above, determine the area of the table's surface. Show every step of your work. (3 points)
Please answer Part A, Part B, And Part C! Will give brainliest

Answers

Answer:I believe the answer is Part B:What would be the area of each triangle? Show every step of your work.

A restaurant customer left $1.40 as a tip. The tax was 5% and the tip was 20% of the cost including tax. a. Which information is not needed to compute the bill after tax and tip? b. What was the total bill?

Answers

Answer:

Step-by-step explanation:

(10 x 100) x = 0.70. (10÷ 10) 100 ÷ 10. = 1/10 x = 0.70. X 0.70 x 10. X= 7.00

The total bill would be 7%

20 points to whoever gets this right <3 ( need a equation )

Nabhitha buys cookies and onions at the store.
She pays a total of $60.39.
She pays a total of $4.79 for the cookies.
She buys 8 bags of onions that each cost the same amount.

Write and solve an equation which can be used to determine xx, how much each bag of onions costs.

Answers

Answer:

8x+4.79=60.39

Step-by-step explanation:

If you want this solved,

60.39-4.79 = 55.6

55.6/8 =6.95

One bag of onions = $6.95

(just for extra because I'm tired)

The answer is 8x + 4.79 = 60.39
Explanation

Which formulas can you use to calculate the volume of a rectangular prism? Check all that apply.
V = one-half b h
V = 2l + 2w
V = Bh
V = lw
V = lwh
V = s2

Answers

The answers are V = Bh and V = lwh

You can either use the third or the fifth

Help me answer this nonsensical question!!!!!

Answers

Answer:

Step-by-step explanation:

(if he gathers 4 coins each month you will need the variable by it. he was given 20 coins so it is added on to how many coins he has. plus it would be greater than because the question asked when he will have MORE than 50 coins.)

The answer to this problem is D.

We know that each month, he gets 4 coins to add to his collection so that would represent 4m. And we know that he started with 20. The last thing that we know is that we will need a greater than symbol to represent more than 50. Therefore the equation is
20 + 4m > 50.

Have a wonderful day ❤️

Two of the vertices of a rectangle are plotted on the coordinate grid below.

Answers

Option A is the correct answer.

A is the correct answer for this question

Other Questions

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