1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kirza4 [7]
3 years ago
13

Mike is pouring a two foot cement sidewalk around the perimeter of his swimming pool. His swimming pool measures 6 feet by 14 fe

et. If he plans for the sidewalk to be 9 inches deep, what volume of cement is needed for the sidewalk?
Mathematics
2 answers:
kramer3 years ago
7 0

Answer:

the correct answer is B) 72^ft 3

frosja888 [35]3 years ago
4 0
9 inches * 1 foot / 12 inches
= 3/4 feet deep

Area of the sidewalk: 
= the sides of the pool * the width of the sidewalk + the corners of the sidewalk (width * width)
= 2 sides * 6 (feet / side) * 2 feet + 2 sides * 14 (feet / side) * 2 feet + 4 corners * (2 feet * 2 feet / corner)
= 12 feet * 2 feet + 28 feet * 2 feet + 4 * 2 feet * 2 feet
= 24 feet^2 + 56 feet^2 + 16 feet^2
= 96 feet^2

Volume:
= 96 feet^2 * 3/4 feet
= (96 * 3 / 4) feet^3
= (19 * 3) feet^3
= 57 feet^3
You might be interested in
Need Help Quickly - conjectures with angles
Ksenya-84 [330]

a) false (89+89=178⁰ not acute!)

b) false (they could both be 90⁰ but this is the only angle that works)

c) what

d) false (92+92=184⁰ this is less than 360⁰)

can you please explain c ????

3 0
3 years ago
Which expression represents the total surface area, in square meters, of the rectangular pyramid below?
VladimirAG [237]
(2xhb)+(lb)

h= hight of triangle
b= base
l= lenght
b= breath
4 0
3 years ago
In a library, the ratio of maths books to science books is 3 : 2 and the ratio of science books to history books is 1 : 3. If th
trapecia [35]

Answer:

60 maths books

Step-by-step explanation:

<u>Let the following be:</u>

  • Maths books = m
  • Science books = s
  • History books = h

<u>And we have ratios and sum:</u>

  • m/s = 3/2
  • s/h = 1/3
  • m+s+h = 220

<u>From the ratios we get:</u>

  • m = 3s/2
  • h= 3s

<u>Considering the above in the sum of books:</u>

  • m+s+h = 220
  • 3s/2 + s + 3s = 220
  • 3s + 2s + 6s = 2*220
  • 11s = 440
  • s = 440/11
  • s = 40

<u>Number of maths books:</u>

  • m = 3s/2 = 3*40/2 = 60
6 0
3 years ago
Answer please show work
kherson [118]

Answer:

That's too small for me

Step-by-step explanation:

7 0
3 years ago
Look at the triangle shown below / i need answers
IgorC [24]
That traingle is a scalene because all the sides aren't equal

I would say acute becuase the angle right there is less than a 90 degree angle
8 0
3 years ago
Read 2 more answers
Other questions:
  • Mrs. Herring buys a car for $28,750 and the value of the car decreases at 12.5% each year. How much is her car worth after 5 yea
    15·1 answer
  • Elizabeth likes to read. She prides herself on being able to read 240 pages in 2 hours. How long does it take Elizabeth to read
    7·1 answer
  • Put a check by all the factors of 20.
    13·1 answer
  • -3 x - 5 = 36. What is X?
    11·1 answer
  • Samantha saw 60 people.
    12·1 answer
  • Derivative of (2x+9)^3
    14·1 answer
  • Based only on the information given in the diagram, which congruence
    5·1 answer
  • There are 600 students at a middle school. If 60% of the students are girls, how many students at the middle school are girls?
    7·2 answers
  • I need help on how to get the answer too number 27.
    13·1 answer
  • Find the slope of the line that passes through the points (2,-8) and (3,1)
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!