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
sp2606 [1]
3 years ago
12

Archaeology students are constructing a replica of the Great Pyramid of Giza that they will then fill with sand. The replica is

to be the size of the original pyramid. The Great Pyramid is approximately meters tall and each side of the base is approximately meters long. Based on these measurements, how many cubic meters of sand will the students need? Round your answer to the nearest whole number.
Mathematics
1 answer:
vichka [17]3 years ago
4 0

Archaeology students are constructing a replica of the Great Pyramid of Giza that they will then fill with sand. The replica is to be 120the size of the original pyramid. The Great Pyramid is approximately 147 meters tall and each side of the base is approximately 230 meters long. Based on these measurements, how many cubic meters of sand will the students need? Round your answer to the nearest whole number.

Answer: 972 m^3 of sand

Step-by-step explanation:

Height of original pyramid = 147 meters

Each side of the base = 230 meters (that is both the base length and base width).

If replica pyramid is to be 1/20 the size of the original pyramid :

Size dimension of replica pyramid will therefore be,

Height = 1/20 × 147 = 7.35metres

Each Base = 1/20 × 230 = 11.5 metres

To calculate the amount of sand required, we can get these by Calculating the volume of the pyramid which us the amount of space occupied by an object.

The volume of a pyramid is given by:

(Base length × base width × height) ÷ 3

( 7.35 m × 11.5 m × 11.5 m) / 3

972.0375 m^3

That means the volume of the pyramid is 972.0375 m^3

You might be interested in
Ten times the sum of a number and
s2008m [1.1K]
At least means greater than or equal to.

10 × (15+b) ≥ 26
150+10b ≥ 26
10b ≥ -124
b ≥  -12.4
6 0
3 years ago
5(x-10)=30-15x<br> Ox=1<br> Ox=4<br> Ox=5<br> Ox=8
makvit [3.9K]

Answer:

x = 4

Step-by-step explanation:

5x-50=30-15x

5x +15x =30+50

20x= 80

Divide both sides of the equation by 20

x = 4

I hope it helps

7 0
3 years ago
A probability distribution for a random variable Y is given by P(Y=y)=cy, for y=1,2,4,5 and c is a constant. Find E(Y), the expe
Dahasolnce [82]

Answer:

c(1+2+4+5) =1

c =\frac{1}{12}

Now we can find the expected value with this formula:

E(Y) =\sum_{i=1}^n Y_i P(Y_i) =\sum_{i=1}^n cy_i *y_i = cy^2_i

And replacing we got:

E(Y) = \frac{1}{12} (1^2 + 2^2 + 4^2 +5^2) = \frac{46}{12}= \frac{23}{6}

Step-by-step explanation:

For this case we know the following probability mass function given:

P(y) = cy , y= 1,2,4,5

For this case we need to satisfy the following condition in order to have a probability distribution function:

\sum_{i=1}^n P(y_i) =1

And we have this:

c(1+2+4+5) =1

c =\frac{1}{12}

Now we can find the expected value with this formula:

E(Y) =\sum_{i=1}^n Y_i P(Y_i) =\sum_{i=1}^n cy_i *y_i = cy^2_i

And replacing we got:

E(Y) = \frac{1}{12} (1^2 + 2^2 + 4^2 +5^2) = \frac{46}{12}= \frac{23}{6}

6 0
3 years ago
I NEED HELP ASAP
beks73 [17]

 

The answer is in the attached picture.



6 0
4 years ago
What is 12 x 34 /49 x 45 + 58 - 67?
AVprozaik [17]

Answer: 365.6938775510204081602040816326530612245

<u><em /></u>

Step-by-step explanation: Multiply 12 x 34 you get 408

And then multiply each number. You can even use a calculator.

4 0
3 years ago
Other questions:
  • Complete the square to solve 2x^2+20x=1 0
    8·1 answer
  • Find the surface area of the prism​
    7·1 answer
  • Simplify (x To the power of 3)to the power of 5
    7·1 answer
  • Solve for f in the proportion.<br> 28/44 = F/99 F = ?
    14·1 answer
  • A van travels 320 miles on 16 gallons of gas. Find how many gallons the van needs to travel 420 miles
    11·1 answer
  • What is 9x9x9x9x9x9x9x9x9x9x9x9x9x9 <br> DO NOT LOOK AT THE CALCULATOR!
    11·2 answers
  • BTW this is Algebra 2
    8·1 answer
  • What is the difference between Whole numbers and Natural numbers
    11·1 answer
  • Compare Linear &amp; Exponential Functions Activity - Who an I?
    10·1 answer
  • Find the equation of a line that passes through the point (-4,1) and has a gradient of 2.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!