Mathematics Middle School

4 What is the volume of the rectangular
prism in cubic meters?
3 m
4 m
5 m

A. 12
B. 24
C. 45
D. 60

Answers

Answer 1

Answer:

60m³

Step-by-step explanation:

→ Work out the face area

5 × 3 = 15

→ Multiply by the length of prism

15 × 4 = 60m³

Answer 2

Answer:

Step-by-step explanation:

V = length x width x heigh

3 x 5 x 4 = 60

Related Questions

Daniel is a piano instructor who gives lessons on weekends. The cost of one lesson is $30. Daniel is offering a 5-lesson package with a 25% discount off the total price.

How much would a student save by buying a multi-pack compared to 5 separate lessons?

Why would Daniel offer a discount when he knows he could earn more money selling the lessons separately?

Answers

Answer:

150 is if you buy them separately but 150-25%=112 so 150-112=38 so students would save $38

Step-by-step explanation:

he made that package so that more people would go to his lessons know that there was a discount going on and more people would choose his lessons over people who don't have discounts.

Answer:

1- Separately - 150

2- students would save 38

Jenny has 36 cupcakes. How many kids (including Jenny) can share these cupcakes evenly?

The number of kids who can share 36 cupcakes evenly could be:

Answers

36 is the correct answer

36

36/?

Smallest amount of kids per cupcake is 1

36/1

36 kids

hello, please help me i dont know what 2 do

Answers

Answer:

Greater than

Step-by-step explanation:

you are adding exponent with the same denominator if its easier for you in this example you can set the denominator equal to 10.

Sum= adding

2/5 +4/5 =6/5 or 1 1/5

if you want to do it with the denominator equal to 10 just multiply each side by 2.

(2/5 +4/5)x 2

4/10 + 8/10 = 12/10

greater than, lmk if you need an explanation!

Look at this number sentence.

( ? + 10 ) + 4 = 7 + ( 10 + 4 )

Answers

Answer:

x = 7

7 + 10 + 4 = 7 + 10 + 4

Step-by-step explanation:

( ? + 10 ) + 4 = 7 + ( 10 + 4 )

x + 10 + 4 = 7 + 10 + 4 (the answer is just 7)

x + 14 = 21

x = 21 - 14

x = 7

The answer is -5because you have to subtract 10 with -7 and it will give you 3 plus 4 is 7

8th grade word problem!! 100 POINTS+BRAINLIEST: just write out the steps and explain in simple language :)) Answers for the sake of points will be reported

Answers

(i) Equation : y = 6.25x + 65

(ii) Price of each ticket : $6.25

(iii) Money originally in the box : $65

Explanation:

Here from table, identify the coordinates given.

Coordinates:

(7, 108.75)(13, 146.25)(18, 177.50)

Find slope:

[tex]\sf slope: \dfrac{y_2 - y_1}{x_2- x_1} = \dfrac{\triangle y}{\triangle x} \ \ \ where \ (x_1 , \ y_1), ( x_2 , \ y_2) \ are \ points[/tex]

[tex]\rightarrow \sf slope \ (m) : \dfrac{146.25-108.75}{13-7} = 6.25[/tex]

Slope is also the price of each ticket which is $6.25

Equation:

[tex]\sf y - y_1 = m(x - x_1)[/tex]

[tex]\rightarrow \sf y - 108.75 = 6.25(x - 7)[/tex]

[tex]\rightarrow \sf y - 108.75 = 6.25x - 43.75[/tex]

[tex]\rightarrow \sf y = 6.25x - 43.75 + 108.75[/tex]

[tex]\rightarrow \sf y = 6.25x +65[/tex]

To find the amount of money in the box originally, insert x which represents number of tickets sold as 0.

Originally amount of money:

[tex]\rightarrow \sf y = 6.25(0) +65[/tex]

[tex]\rightarrow \sf y = 65[/tex]

Hence, there were $65 in the box before any tickets were sold.

Number 1 is the answer

Simplify -40/7+8-23/7

Answers

Answer:

-1

Step-by-step explanation:

-40/7+8-23/7

= -40/7+8-23/7

= 16/7-23/7

= -1

Answer would be negative 1

pls answer 20 points I will mark brainliest

Answers

Answer:

678.24

Step-by-step explanation:

First, we have to find the area of 1 cylinder(pi x r^2 x h), which i got as 226.08 then we multiply by 3 because there are 3 cylinders. 226.08 x 3 = 678.24

Answer: Hope this helps you!

678.24

Step-by-step explanation:

First, I started off with the equation of the area of a cylinder

Area = π * radius^2 * height

Now I will go on and substitute

Area = 3.14 * 3^2 * 8

And now I will start solving

Area = 3.14 * 3^2 * 8

(3^2 = 3*3 = 9)

Area = 3.14 * 9 * 8

(9*8 = 72)

Area = 3.14 * 72

Area = 226.08

The area of 1 cylinder is 226.08, however we need to find the area of the whole composite figure which is made up of 3 cylinders.

226.08 * 3 = 678.24

The answer is 678.24(Make me brainliest!)

Repost 8th grade 50 POINTS+BRAINLIEST: How do you graph a quadratic equation in vertex form when the equation is a perfect square? Use x² -4x+4 as an example

Answers

Answer: Vertex : Maximum (2, 0)

Rules:

(x + d)² = x² + 2dx + d² and (x - d)² = x² - 2dx + d²x² + 2dx = (x + d)² - d² and x² - 2dx = (x - d)² - d²

Solve:

x² - 4x + 4

x² - 2(2x) + 2²

(x - 2)²

Into vertex form: a(x - h)² + k

1(x - 2)² + 0

Identify:

vertex : (h, k) = (2, 0)

Find additional things, to graph the equation:

(i) x-intercept: (2, 0)

(ii) y-intercept: (0, 4)

Graph shown:

1(x-2)^2+0 is the vertex form

Estimate the difference by rounding each mixed number to the nearest half or whole number. 8 4/10 - 2 1/7

Answers

The answer would be 6 9/35 which would round to 6.5

Answer:

6 1/2

Step-by-step explanation:

8 4/10 is rounded to 8 1/2 and 2 1/7 is rounded to just 2

8 1/2 - 2 = 6 1/2

Find the end time in the event and enter them into table

Answers

Answer:

Movie: 1:35pm

Soccer Game: 1:05pm

Concert: 1:50pm

Step-by-step explanation:

Movie:

Starting at 11:20am and ends in 2 hours and 15 minutes

hours : minutes

2 hours after 11am is 1pm

15 minutes after 20 is 35

so the movie will end at 1:35pm

Soccer Game:

Starting at 11:35am and ends in 1 hour and 30 minutes

hours : minutes

1 hour after 11am is 12pm

30 minutes after 35 is (65) 5 minute of the next hour (1 hour and 5 mins total)

so the soccer game will end at 1:05pm

Concert:

Starting at 12:15pm and ends in 1 hour and 35 minutes

hours : minutes

1 hour after 12pm is 1pm

35 minutes after 15 is 50

so the concert will end at 1:50pm

Answer:

1:35pm

Soccer Game: 1:05pm

Concert: 1:50pm

Step-by-step explanation:

Movie:

Starting at 11:20am and ends in 2 hours and 15 minutes

hours : minutes

2 hours after 11am is 1pm

15 minutes after 20 is 35

so the movie will end at 1:35pm

Soccer Game:

Starting at 11:35am and ends in 1 hour and 30 minutes

hours : minutes

1 hour after 11am is 12pm

30 minutes after 35 is (65) 5 minute of the next hour (1 hour and 5 mins total)

so the soccer game will end at 1:05pm

Concert:

Starting at 12:15pm and ends in 1 hour and 35 minutes

hours : minutes

1 hour after 12pm is 1pm

35 minutes after 15 is 50

so the concert will end at 1:50pm

Step-by-step explanation:

how do i turn a fraction into its simplest form?

Answers

Answer:

You divide both the numerator and the denominator by the same number until they can't be reduced any further.

Answer:

Make sure to divide the upper number and the lower number (in position) to a number which can't be futher divided. It will be of numbers which are really small numbers. like 4/2 will be divided by 2 to get the simplified answer of 1/2

Step-by-step explanation:

Mr Brown has to pay a $670 power bill by the end of the month. He has 12 days to go before the end of the month. He has already set aside $152 for the bill. He plans to save an equal amount per day for each of the 12 days.

a) what is the minimum amount he should save per day to be able to pay the bill?

b) Convert your answer to a certain currency. $1 in the current currency = $1.35 to the new currency.

Answers

$43.17 is the minimum per day . $58.28 is with new currency

ok didn’t fbifnfneneidnr

There are about 30.5 centimeters in a foot. There are 3 feet in a yard. About how many centimeters in a yard? Please explain how you got your answer

Answers

91.5 centimeters!
Because there is 30.5 centimeters in one foot, and 3 feet in a yard, you need to multiply 30.5 by 3 for each foot, or 30.5*3=91.5!

Answer:

[tex]10\frac{1}{6}[/tex]

whoever can answer all of these will get brainless

1. 121/2 - 9 1/4 =
2. 5 1/2 - 2 5/12 =
3. 7 1/5 - 3 7/10 =
4. 11 2/3 - 8 1/2 =
fractions by the way

answer that goes with each question
3 1/2) 3 1/3) 3 1/4) 3 1/6) 3 2/3) 3 3/4)

which ones do they go with?

4

Answers

Firstly, brainly allows 1 question per question. So do not try this again.

Lets make the fractions all like terms.

242/4 - 37/4=205/4. Lets now make this a mixed fraction.
By doing 205/4, we find out that 4 goes in less than 51 times.

1. 51 1/4.

2. 11/2 = 66/12.....so 66/12 - 29/12= 37/12. Make it mixed fraction: 3 1/12.

3. 36/5=72/10. 72/10 - 37/10 = 35/10. As a mixed it is 3 1/2

4. 35/3 - 17/2 can be rewritten by finding their GCM (Greatest Common Multiple). In this case it is 6.

70/6 - 51/6 = 19/6. 3 1/6.

#LearnWithBrainly, get Verified Answers

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A box has the shape of a rectangle or prism with height 28 cm. If the height is increased by 0.3 cm, by how much does the surface area of the box increase?

Answers

Answer:

4.5cm

Step-by-step explanation:

28cm+0.3cm=28.3cm

surface area=28.3cm×15cm=424.5cm

original surface area=28cm×15cm=420cm

different=424.5cm-420cm=4.5cm

28.3 is the answer because 28+.3=28.3

How many solutions does the system have?
y = − 7 x + 8
y = −7x - 8

A one
B none
C Infinite

Answers

Answer: B. None

Step-by-step explanation:

The best way to figure this out is by graphing it. I used Desmos graphing calculator. The red line is the first equation, and the blue line is the second one. As you see, they do not intersect anywhere, therefore will not have any solutions.

I hope this helps!! Pls mark brainliest!! :)

Answer:

Step-by-step explanation:

These are PARALLEL lines....they both have the same slope -7

so there are no solutions

What is the greatest common factor of 253 and 345?

Answers

Answer:

Step-by-step explanation:

To find the Greatest Common Factor, or GCF, we need to factor the first 2 numbers and then find the greatest number that is both present in the prime factorization of both numbers.

253 = 1 * 11 * 23

345 = 3 * 5 * 23

Since 23 is both present in both numbers and is the greatest, the GCF of 253 and 345 is 23.

the greatest common factor of 253 & 345 is 23

Please help me with this (i attached photos to cause less confusion)

Thanks :) 25 Points!!!

Answers

Answer:

See below

Step-by-step explanation:

The first two questions are slope = 0

a horizontal line has zero slope

slope = rise/run = 0 / run = 0

Greatest y value is + 4 from x = 3 to 4

the least y value is -3 fro x = -4 to -3

horizontal line has zero slope
slope=rise/run=0
#1) and #2) both are slope=0
greatest y value is +4 from x=3 to 4.
then least y value is -3 from x=-4 to -3.

Taxable Income, Investments and Capital Gains Calculation
Will give brainliest to the person with the best answer and explanation

Answers

Answer:

Capital Gains

Capital gain calculation in four steps

Determine your basis.

Determine your realized amount.

Subtract your basis (what you paid) from the realized amount (how much you sold it for) to determine the difference.

Review the descriptions in the section below to know which tax rate may apply to your capital gains

Tax

To calculate the taxable gain on the sale of an asset, an individual takes the difference between the original purchase price and the sale price of the investment.

It’s 100 because ye I said so

In Jason's class, 1/2 of the boys have brown eyes, 1/5 of the boys have blue eyes, and 3/10 of the boys have hazel eyes. How many more of the boys have brown eyes than hazel eyes?

Answers

Answer:

Step-by-step explanation:

ist you have to lind the lcd of each fraction. that would be 10.

1/2x5/5=5/10 of the boys have brown eyes

1/5x2/2=2/10 of the boys have blue eyes

3/10=3/10 of the boys have hazel eyes

The question is asking to see how many more boys have brown eyes than hazel eyes.

Subtract 3/10 from 5/10

and that gives you 2/10

The answer is 1/5.

We know that half of the boys in Jason's class has brown eyes, while three-tenths of the boys in his class have hazel eyes. Therefore, if we subtract the two values, you should get your answer.

[tex]\frac{1}{2} -\frac{3}{10} =\frac{2}{10}[/tex]

1/5 is the simplified version of 2/10. Therefore, 1/5 is your answer.

Show all work to identify the asymptotes and zero of the function f of x equals 4 x over quantity x squared minus 16.

Please explain with simple words! :)

Answers

Answer:

The zeros of a rational expression are the places where the numerator is zero:

4x = 0

x = 0

divide by 4

4x = 0 , x = 0 I think that should be correct

Solve 2x2 + 5x = 12
Here are the answers provided
\/
x = three over two and x = −4
x = 2 and x = −3
x = −6 and x = 5
x = one half and x = one over three

Answers

Answer:

Step-by-step explanation:

2x² + 5x = 12

2x² + 5x - 12 = 0

x² + 5x - 24 = 0

factors of 24 are 1, 2, 3, 4, 6, 8, 12, 24. the only pair that adds to 5 is 8 and 3

2x² - 3x + 8x - 12 = 0

split the equation and factor

2x² - 3x = 0 ||| 8x - 12 = 0

x(2x - 3) ||| 4(2x - 3)

therefore the pair is (2x - 3)(x + 4)

2x - 3 = 0

2x = 3

x = 3/2

x + 4 = 0

x = -4

The answer to this question is A

CORRecT ANSWERS ONLY. What is the value of x?

Answers

Answer:

x =5.25

Step-by-step explanation:

Comment

So you want to find x? If the scale factor is 1.75 it means that you multiply whatever dimension on Figure A by 1.75 to get the corresponding dimension on B.

Formula

x = 1.75 * 3

Solution

x = 1.75 * 3

x = 5.25

X=5.25

Trust me I did this problem and I got it correct

I need help with this topic, an explanation of how you got the answer would be very much appreciated, Thanks :)

( I attached pictures )

Answers

Answer:

No Solutions

Step-by-step explanation:

Hello!

We can approach this system using the Elimination method. Since the coefficients of the the x terms are the same, we should vertically subtract the two equations.

Subtract[tex]\left \{ {{y=9x - 5} \atop {y = 9x + 6}} \right.[/tex][tex]-\left \{ {{y=9x - 5} \atop {y = 9x + 6}} \right.[/tex][tex]-\left \{ {{y=9x - 5} \atop {y = 9x + 6}} \right.\\0 = 0 -1 1[/tex][tex]0 \neq -11[/tex]

Since 0 does not equal to -11, there are no solutions to the system.

We can also look at this graphically. The two lines have the same slope but different y-intercepts, meaning that they would be parallel lines with no intersection. If there is no intersection, there are no solutions.

the answer no solutions ! bc there’s literally no solution

CORRECT ANSWERS ONLY PEEPS- this is 7th grade math on khan academy and if ur answer is incorrect, ill report yalll

Answers

Answer:

Step-by-step explanation:

proportional relationship: must be straight line and go through (0, 0).

[tex]\quad \huge \quad \quad \boxed{ \tt \:Answer }[/tex]

[tex]\qquad \tt \rightarrow \: C. 2 [/tex]

____________________________________

[tex] \large \tt Solution \: : [/tex]

Proprtional relationship can be depicted as :

[tex]\qquad \tt \rightarrow \: y \propto x[/tex]

[ to get rid of proportionality sign, we use constant c ]

[tex]\qquad \tt \rightarrow \: y = cx[/tex]

Now, conclusion can be made that the shown equation represents a straight line.

And the graph has two straight lines, which means proportional relationship is shown by Two members

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

Mary's desk was 67.94 inches long, Joe's desk was 78.26 inches long and Troy's desk was x inches long. If the length of all the desks combined was 214.62 inches, how long was Troy's desk?

Answers

Answer:

68.42

Step-by-step explanation:

We know that when we add the lengths of all of the desks together, the total is 214.62. Based on that information, we can set up the following equation: 67.94 + 78.26 + x = 214.62. From there, all you have to do is add 67.94 + 78.26 to get 146.2. Lastly, you simply do 214.62 - 146.2 to get 68.42. Hope this helps!

Answer:

68.42

Step-by-step explanation:

10 Points!!!
A cheese is in the shape of right prism with a triangular base and its dimensions are as shown. What is the approximate surface area of this prism?
A. 72 cm ²
B. 79.8 cm ²
C. 82 cm ²
D.87.4 cm ²

Answers

Answer:

79.8 cm²

Explanation:

surface area of triangular prism: (a + b + c) × length + base × height

Here given:

a = 3 cm, b = 3 cm, c = 3 cm, length = 8 cm, base = 3 cm, height = 2.6 cm

Inserting the values:

(a + b + c) × length + base × height

(3 + 3 + 3) × 8 + 3 × 2.6

79.8 cm²

More on surface area of triangular prism: https://brainly.com/question/27970162

79.8 is the correct answer

NO LINKS OR FILES PLEASE!!!!!!
Part B: Starting from the origin, explain how to plot the following three points accurately:

(1, −1)
(−1, 1.25)
(−2, fraction 3 over 4)

Answers

answers_______________________________

Answer:

refer to the above attachment !

Step-by-step explanation:

Mark as brainlest answer to This answer!

Need help with this, explaining how to do it would be very much appreciated. Thanks :)

Answers

A

Exactly one solution

Answer:

Solution: There is exactly one solution, the lines intercept at one point, they are not the same line, so they do not have infinite solutions, and if they were to not intercept, they would have no solution.

Step-by-step explanation:

Set the equations equal

-2x-4=3x+3
+4 +4

-2x=3x+7

-3x -3x

-5x=7

/-5

x=-7/5

Plug x back into one of the equations

y=-2(-7/5)-4

y=-6/5

Translate the following phrase to a mathematical expression.

a number times fifteen

(A) 15 n
(B) 15 + n
(D) 15 ÷ n
(C) n15

Answers

Answer:

I think C

Step-by-step explanation:

A number times fifteen would be n • 15 or just n15.
The reason it is not 15n is because it asks a "number" which in this case is represented by the letter n. That letter is now multiplied (times) by 15. So therefore the number "n" times 15 is n15.

Please hit brainliest or thanks, it would help me out.

#Learnwithbrainly

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4 What is the volume of the rectangular prism in cubic meters? 3 m 4 m 5 m A. 12 B. 24 C. 45 D. 60

Answers

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4 What is the volume of the rectangular
prism in cubic meters?
3 m
4 m
5 m

A. 12
B. 24
C. 45
D. 60