Mathematics Middle School

Sally builds these steps for her dog.

What is the volume of the steps?

Sally Builds These Steps For Her Dog.What Is The Volume Of The Steps?

Answers

Answer 1

Answer:

Step-by-step explanation:

V=LWH

first lets find the volume of the bottom rectangle

(30)(2)(4)= 240

for the second rectangle we need the length:

30-15=15

15 is the length of the second rectangle the width is going to be 2 because you can tell by the picture above as well as the height

for the second rectangle(or the one on top) you're going to multiply

(2)(2)(15)=60

now we add both of the volumes up (240+60) to get an overall volume of

300

Answer 2

The volume of the steps Sally built is 300 cubic inches,

What is a cuboid?

A cuboid is a three-dimensional closed figure which has volume along with surface area.

The volume of a cuboid is the product of its length, width, and height.

The total surface area of a cuboid is 2( lw + wh + wl) and the lateral surface area is 2(l + w)×h.

The given figure can be broken into two parts,

The taller cuboid has a height of (2 + 4) = 6 inches, width of 2 inches and a length of 15 inches.

Therefore, The volume of the taller cuboid is (6×2×15) cubic inches.

= 180 cubic inches.

Next cuboid has a length of 15 inches, height of 4 inches and width of 2 inches.

Therefore volume of this cuboid is,

= (15×4×2) cubic inches.

= 120 cubic inches.

So, The total volume of the cuboid is,

= (180 + 120) cubic inches.

= 300 cubic inches.

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Related Questions

Find the discriminant and the number of real roots for this equation.

4x2 + 12x + 9 = 0

A. -144; one real root

B. -144; no real roots

C. 0; one real root

D. 0; two real roots

Answers

Discriminant and the number of real roots for this equation are 0, one real root.

What is discriminant?

Discriminant of a polynomial in math is a function of the coefficients of the polynomial.

The discriminant of a quadratic equation ax2 + bx + c = 0 is in terms of its coefficients a, b, and c. i.e.,

Discriminant = [tex]\sqrt{b^{2} -4ac}[/tex]

Given equation

[tex]4x^{2} +12x+9 = 0[/tex]

Discriminant = [tex]\sqrt{b^{2} -4ac}[/tex]

= [tex]\sqrt{12^{2}-4(4)(9) }[/tex]

= [tex]\sqrt{144-144}[/tex]

D = 0

Therefore, number of real roots is one.

Hence, discriminant and the number of real roots for this equation are 0, one real root.

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True or False: When we convert a decimal to a percent we are multiplying the decimal by 100.

Answers

The answer is true :)

Can someone help me with this question?

Use the distributive property to rewrite this equation.

​ 11(3x+4y)11(3x+4y)

Answers

Answer:

33x+44y

Step-by-step explanation:

multiply 11 by each term

121(3x+4y)^2 Is the answer:)

Please help with this question

Answers

Answer:

(-3,2)

Step-by-step explanation:

Please. help me I would really appreciate it thx

Answers

Stephano’s marble will get there first because the slope for Stephanos’s marble is y=2.25x, and when you do the math, (6=2.25x), the marble will reach 6 ft. at 2.7 seconds, and the x in y=3/2x for Pete’s marble is 6 ft. after 4 seconds, so Stephano’s marble will reach the 6 ft. mark first.

PLS HELP ASAP!!!! WILL GIVE BRAINLY A pet store is running a special by charging $8 for a month’s supply of lizard food. An online store charges a one-time $10 fee and then $6 for each month’s supply of food.

Answers

Answer:

24

Step-by-step explanation:

8+10+6=24

24 nexus sb did d did d did. d dndjndndmd

The elephant eats 220 pounds of food a day costing $45. The tax on the food is 12%. How much does the zoo spend on elephant food. (NEED ANSWERS ASAP)

Answers

So 220 pounds of food a day is 45$ a day so the tax is 12% so since 45$ a day and 12% for tax so if you minus it is 5.4

Can someone plz help me with this !

Answers

The answer is 1, each number has 8 added to it.

Also, i hated IXL so goodluck-

Answer:

1

Step-by-step explanation:

It's increasing by 8

Hope this helps :)

whats bigger 4/9 or 6/7

Answers

6/7 is greater than 4/9

Answer:

[tex]\frac{6}{7}[/tex]

Step-by-step explanation:

[tex]\frac{4}{9}or \frac{6}{7}[/tex]

First you need to find a common denominator. so you could just multiply 9 and 7 or you could write the factors of each number.9*7 is 63, so that is your denominator. Multiply top and bottom of [tex]\frac{4}{9}[/tex] by 7 and you should get [tex]\frac{28}{63}[/tex].Multiply top and bottom of [tex]\frac{6}{7}[/tex] by 9 and you should get [tex]\frac{54}{63}[/tex]. Is [tex]\frac{28}{63}[/tex] or [tex]\frac{54}{63}[/tex] bigger?[tex]\frac{54}{63}[/tex] is bigger so your answer would be [tex]\frac{6}{7}[/tex].

Hope this helps :)

What is the area of the polygon in square units?
Correct answer gets brainliest

Answers

Answer:

72

Step-by-step explanation:

what positive value of c makes the equation true?

27+54=c2

Answers

Answer:

9

Step-by-step explanation:

Step-by-step explanation:

27+54=81

81÷2=9

so c equals 9

This expression represents the amount of money, in dollars, that will be in a savings account after 4 years. Which of these is equivalent to the expression?

Answers

Answer:

Step-by-step explanation:

Answer:

D 1500(1+0.05/12)^48

Step-by-step explanation:

1. solve the proportion 1/2=p/100 to write 1/2 as a percent

2. Solve the proportion 4/5=p/100 to write 4/5 as a percent

3. Solve the proportion 1/6=p/100to write 1/6 as a percent

PLEASE HELP ME :)

Answers

Answer:

1. 50%

2. 80%

3. 16.6% rounded 16.7%

now gimme brainliest

1. 50
2. 80
3. 16.7 rounded

When rounding to the nearest tenth, which of the numbers below will round to 78.5? S

Answers

78.45 or 78.46 or 78.47 or 78.48 or 78.49
78.45 is the answer

PLEASE HELP :D
solve each equation by showing your work OR explaining all your steps

1. -4x + 2 = -18

2. x/3 - 6 = -2

Answers

-4x + 2 = -18
-4x -2 = -2
-4x = -20


-4x over -4 and -20 over -4 you divide and then you get positive 5 so x=5 because 2 negatives makes a positive
All I know is that answer 1 is 5

What is the domain of this relation?

Answers

Answer:

{-3, 3, 5, 9}

Step-by-step explanation:

Your domain can be any number as long as it doesnt repeat itself.

(-3,3,5,9) is the domain. just don’t let it repeat itself.

Can someone please help me with this 7+9x(3+8)=

Answers

Answer:

99x + 7

hope this helps:)

The winning candidate in an election receives 0.58 of the votes. There are 1000 voters. How many votes does the winning candidate receive?

Answers

They receive 580 of the votes because 58% of 100 is 580 or just simply multiply 0.58*1000=580.

The winning candidate in an election receives 0.58 of the votes. There are 1000 voters. The winning candidate receives the votes is 580.

How to find the percentage from the total value?

Suppose the value of which a thing is expressed in percentage is "a'

Suppose the percent that considered thing is of "a" is b%

Then since percent shows per 100 (since cent means 100), thus we will first divide the whole part in 100 parts and then we multiply it with b so that we collect b items per 100 items(that is exactly what b per cent means).

Thus, that thing in number is

[tex]\dfrac{a}{100} \times b[/tex]

The winning candidate in an election receives 0.58 of the votes.

There are 1000 voters.

58% of 1000

= 0.58 x 1000

= 580

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4 + 2(5) + (−3) just wondring what it was

Answers

4 + 2(5) + (−3)

= 4+10-3

= 11

I think that's the answer.

I'm not sure of that's what you were asking though.

4+ 2(5) + (-3)
= 4+10-3
= 11

Use the equation to complete the table.

Answers

Answer:

( 0, 0 )

( 3, 2 )

( 6, 4 )

( 9, 6 )

Step-by-step explanation:

for each of the ordered pairs you multiply your x value times 2/3so,for 1)  0 x 2/3 = 0  so, 0 is your y axisfor 2)  3 x 2/3 = 2 so, 2 is your y axisfor 3)  6 x 2/3 = 4 so, 4 is your y axisfor 4)  9 x 2/3 = 6 so, 6 is your y axis

Jushaysbsuhshsushwuuwhe

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

1.k

2.m

3.a

4.q

5.c

6.j

7.o

8.i

9.e

10.p

11.b

12.n

13.r

14.g

15.s

16.f

17.h

18.l

19.d

Step-by-step explanation:

Help me, Please!!!!!!!

Answers

Answer:

c b a and b i think that’s right

Step-by-step explanation:

Help me help helppppp pleaseee

Answers

Answer:

j [tex]\leq[/tex] 14

Step-by-step explanation:

Answer:

j < 14

Step-by-step explanation:

Inequality

Jake is younger then Sophie

Sophie is 14 years old

_______________________

When it comes to inequality, we need to base if off of greater, less, or equal to. We know that Jake is younger than Sophie, therefore he is less in age, meaning that the less than symbol (<) will be used. Since Sophie is 14, he has to be less than 14. Therefore :

j < 14

Help please I will make brainlyist.

Answers

Answer:

1. e

2. f

3. a

4. g

5. h

6. b

7. c

8. d

A. 120 square centimeters
B. 88 square centimeters
C. 72 square centimeters
D. 64 square centimeters

Answers

Answer:

C

Step-by-step explanation:

you could simply do 12 times 10 and then subtract it from 8 times 6 to find your answer. hope this helped :)

Evaluate 5jk − 2k2 when j = 7 and k = 3

Answers

Answer:

93

Step-by-step explanation:

5(7)(3) - 2(3)(2)

105 - 12 = 93

Answer:

The answer is 93 or 105 - 12

Step-by-step explanation:

the first step is to replace the variables in the expression and then to solve by multiplying and dividing first and subtracting and adding last

1. 5*7*3 - 2*3*2

2. 105 - 12 = 93

a random sample of seventh graders shows the numbers of minutes they spend on personal hygiene each morning

Answers

Can you post the rest of the question

Answer:

Step-by-step explanation:

u expect us to know the questions

how to interpret the meaning of a slope

Answers

Dam same
Step by step

please help me and explain

Answers

Answer:

= -6

positive/negative= negative (the sign rule)

54/9=6

You can use the calculator too

Step-by-step explanation:

-6
Explanation: Divide 54 and -6

-9=-3(x+2)+5x what does x equal

Answers

Exact Form:

x=-3/2

Decimal Form:

x=−1.5x

Mixed Number Form:

x=−1 1/2

Answer:

-1.5

Step-by-step explanation:

-9=-3(x+2)+5x  (switching the sides of the formula can make it easier)

-3(x+2)+5x=-9

2x-6=-9

add 6 to both sides --->   2x-6+6=-9+6

simplify ----> 2x=-3

divide both sides by 2 --->  2x/2 = -3/2

simplify ---> x= -3/2

decimal form- -1.5

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