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
Katen [24]
2 years ago
13

Need help with this last question. 98 points. Please explain how you got the answer. Thank you.

Mathematics
2 answers:
ale4655 [162]2 years ago
6 0

Answer:

The height of the large pyramid is 5m

Step-by-step explanation:

V large pyramid = 125

V small pyramid 27

Vlarge/V small = 125/27

The scale factor with volume is as cubed  so take the cubed root

(125/27) ^ (1/3)  = 5/3

The scale factor is 5/3

Large over small is as 5/3

The height of the small pyramid is 3 m.  I will use proportions putting the large on the top and the small on the bottom.  h is the height of the large pyramide

5         h

----- = ---------

3           3 m

Using cross products

3*5 = 3h

Divide by 3

3*5/3 = 3h/3

5 =h

Mice21 [21]2 years ago
6 0

Answer:

5m

Step-by-step explanation:

2 pyramids are similar so all their dimensions are in the same ratio.

let that ratio be x

vol of smaller pyramid = 1/3*height*width*length

vol of larger pyramid = 1/3*(larger height)*(larger width)*(larger length)

= 1/3*(x*height)*(x*width)*(x*length)

= 1/3*height*width*length*x^3

= vol of smaller pyramid*x^3

substitute in the volume values

125 = 27*x^3

x^3 = 125/27

x = 5/3

height of larger pyramid = x*height of smaller pyramid

= 5/3*3

= 5m


You might be interested in
Can Someone help me. PLeeeease..............
aivan3 [116]
I believe the answer is 24 times
hope this helps!
7 0
3 years ago
Solve the equations 11(x+10)=132
VladimirAG [237]
11(x+10) = 132

Distributive property

11x + 110 = 132

Now isolate the variable. 

11x + 110 = 132
        -110     -110

132 - 110 = 22

11x = 22

11x/11 = 22/11
x= 2

Answer:  x = 2

4 0
3 years ago
Read 2 more answers
A school debate team has 4 girls and 6 boys. A total of 3 of the team members will be chosen to participate in the district deba
lys-0071 [83]

Answer:

I’m pretty sure the answer is A.

Hope this helps!

7 0
3 years ago
The house has a form of a rectangle with one side two and a half times as long as the other side. a Construct the expression for
Nookie1986 [14]

Answer: A=2.5x^{2}


Step-by-step explanation:

1. Let's write the following formula for calculate the area of a rectangle:

A=yx

Where y is the lenght (the longer side) and x is the width (the shorter side).

2. You know that the length is 2.5 times as long as the other side, which indicates a multiplication. Then:

y=2.5x

3. So, you must substitute y into the equation for calculate the area of the rectangle and then you must simplify.

4. Then, you obtain the following expression:

A=(2.5x)(x)\\A=2.5x^{2}


4 0
3 years ago
Which of these quadrilaterals have opposite sides that are parallel? Name these quadrilateral
Ad libitum [116K]

Answer:

square,rectangle,rhombus,paralellagram

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • 7,920 yd = mi ?? but, as a fraction.
    10·1 answer
  • Central Middle School sold 50 tickets for one night of the school play. Student tickets sold for $2 each and adult tickets sold
    10·1 answer
  • What is the arc length when theta= 2pi/5 and the radius is 6 cm?
    14·1 answer
  • Rewrite (y x 6) x 5 using the associative property. ​
    12·2 answers
  • A contractor digs a hole for the basements of a new house that is 40 feet long and 10 1/2 feet deep. What is the width of the ho
    5·1 answer
  • A bucket of candy contains 24 Jolly Ranchers, 18 Hershey Kisses, 12 packs of Smarties, and some Starburst. The probability of re
    9·1 answer
  • Find Y <br>.............. ​
    9·1 answer
  • Matching the Transformed Function to its Graph
    13·2 answers
  • Solve for v.<br> -V - 5 = -2v
    5·2 answers
  • Select all tables that could represent a function.<br> A. B. OR C.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!