Question

What is the value of the ratio of the surface area to the volume of the right prism?




A.
1.9


B.
1.05


C.
0.9


D.
0.53

Answer 1

@gaos

Answer 2

Look at the figure
How many rectangle with 5 in and 4 in does it have?

Answer 3

um 2?

Answer 4

Yes, what's the surface area of each of them?

Answer 5

4 x 2 base x hieght

Answer 6

Base x height

Answer 7

8

Answer 8

Base=4
Height =5
What's the area?

Answer 9

20

Answer 10

Yes, each. But we have two rectangle, so the sum of the areas must be....

Answer 11

4 and 5

Answer 12

Two rectangle with an area of 20 each,
20+20=???

Answer 13

40

Answer 14

Yes, keep this number and let's calculate the second part

Answer 15

k

Answer 16

How many rectangle with 5x2 sides are there?

Answer 17

10

Answer 18

Yes and there are two of this .
So 10+10=???

Answer 19

20

Answer 20

And the final part
Two rectangle with 4x2 side
What's the total area?

Answer 21

8

Answer 22

And there are two of these...
So 8+8=???

Answer 23

16

Answer 24

Now, the final answer...
The area of the prism is
16+40+20

Answer 25

76

Answer 26

Right, now let's calculate the volume
Volume = width x height x base

Answer 27

12,800

Answer 28

No,
V=5x4x2
V=???

Answer 29

40

Answer 30

Right, now let's calculate the percentage
How much is
40/76=???

Answer 31

0.526315

Answer 32

D

Answer 33

So the answer is letter....

Answer 34

Perfect

Answer 35

^^

Answer 36

D

Answer 37

Thank you!!!!!!!!!!!

Answer 38

wait no it 1.9 ;-;