gabbyalicorn
  • gabbyalicorn
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
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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gabbyalicorn
  • gabbyalicorn
|dw:1433371387642:dw| @gaos
anonymous
  • anonymous
Look at the figure How many rectangle with 5 in and 4 in does it have?
gabbyalicorn
  • gabbyalicorn
um 2?

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More answers

anonymous
  • anonymous
Yes, what's the surface area of each of them?
gabbyalicorn
  • gabbyalicorn
4 x 2 base x hieght
anonymous
  • anonymous
Base x height
gabbyalicorn
  • gabbyalicorn
8
anonymous
  • anonymous
Base=4 Height =5 What's the area?
gabbyalicorn
  • gabbyalicorn
20
anonymous
  • anonymous
Yes, each. But we have two rectangle, so the sum of the areas must be....
gabbyalicorn
  • gabbyalicorn
4 and 5
anonymous
  • anonymous
Two rectangle with an area of 20 each, 20+20=???
gabbyalicorn
  • gabbyalicorn
40
anonymous
  • anonymous
Yes, keep this number and let's calculate the second part
gabbyalicorn
  • gabbyalicorn
k
anonymous
  • anonymous
How many rectangle with 5x2 sides are there?
gabbyalicorn
  • gabbyalicorn
10
anonymous
  • anonymous
Yes and there are two of this . So 10+10=???
gabbyalicorn
  • gabbyalicorn
20
anonymous
  • anonymous
And the final part Two rectangle with 4x2 side What's the total area?
gabbyalicorn
  • gabbyalicorn
8
anonymous
  • anonymous
And there are two of these... So 8+8=???
gabbyalicorn
  • gabbyalicorn
16
anonymous
  • anonymous
Now, the final answer... The area of the prism is 16+40+20
gabbyalicorn
  • gabbyalicorn
76
anonymous
  • anonymous
Right, now let's calculate the volume Volume = width x height x base
gabbyalicorn
  • gabbyalicorn
12,800
anonymous
  • anonymous
No, V=5x4x2 V=???
gabbyalicorn
  • gabbyalicorn
40
anonymous
  • anonymous
Right, now let's calculate the percentage How much is 40/76=???
gabbyalicorn
  • gabbyalicorn
0.526315
gabbyalicorn
  • gabbyalicorn
D
anonymous
  • anonymous
So the answer is letter....
anonymous
  • anonymous
Perfect
gabbyalicorn
  • gabbyalicorn
^^
gabbyalicorn
  • gabbyalicorn
D
gabbyalicorn
  • gabbyalicorn
Thank you!!!!!!!!!!!
gabbyalicorn
  • gabbyalicorn
wait no it 1.9 ;-;

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