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VikaD [51]
3 years ago
6

A rectangular prism has a length of 20 in., a width of 2 in., and a height of 3

7B4%7D" id="TexFormula1" title="\frac{1}{4}" alt="\frac{1}{4}" align="absmiddle" class="latex-formula"> in.
The prism is filled with cubes that have edge lengths of \frac{1}{4} in.

How many cubes are needed to fill the rectangular prism?
Mathematics
1 answer:
vodomira [7]3 years ago
7 0

Calculate the volume of both the prism and the cubes:

Prism:

Volume = 20 x 2 x 3.25 = 130 cubic inches.

Volume of cube:

Volume = S^3 = 1/4^3 = 1/64 ( 0.015625)

Divide the area of the prism by the area of the cube:

130 / 1/64 = 130 * 64 = 8,320

It would take 8,320 cubes to fill the prism.

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Evaluate the expression 5(8y+3r-5z) if r=3,y=5/8,and z=2
snow_lady [41]
First you plug in the missing values
5(8×5/8+3×3-5×2) = 20
3 0
3 years ago
A coat at a store is originally priced at $54.99. The store marks the price down to $32.99. To the nearest percent, what is the
Dmitry_Shevchenko [17]

Answer:

66.6%

Step-by-step explanation:

Step one

given

A coat at a store is originally priced at $54.99

The store marks down the price down to $32.99

Required

the percent decrease

Step two:

the percent decrease= change in price/ old price*100

the percent decrease= 54.99-32.99/54.99*100

the percent decrease= 22/ 32.99*100

the percent decrease= 0.666*100

the percent decrease= 66.6%

6 0
3 years ago
Ty received test grades of 82%, 74%, 76%, 76%, and 74%.
Nikitich [7]

Answer:

a) To earn C he needs at least 68 and less than 98

b) No, he couldn't make it.

Step-by-step explanation:

I. His avg value is (382 + x)/6

 I pick a random number and that gave

 (68 => to reach 75) and (98 => to reach 80)  

So that makes he needs at least 68 and less than 98

II. The reason why he cannot make it is

 if 100 is 100%

      =   (100 + 382)/6

      = 80.33 That's impossible to reach 90

Hope that help :)

7 0
3 years ago
If f(x+5)=x^+kx+30,k=
Vilka [71]

30 divided by 5 is 6, so the other term is (x+6). (x+5)(x+6) becomes x^2+11x+30, so k is equal to 11.


5 0
3 years ago
How do I find GD? Giving Brainly
77julia77 [94]

Answer:

cut it in half, your answer is 11

3 0
3 years ago
Read 2 more answers
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