rachel/411
<Directions : Read the problem and choose the best answer. Keep in mind that you must show/justify why you chose that answer>
A bakery sells two types of cakes that are shaped like rectangular prisms. The larger cake has a volume of 720 cubic inches. The smaller cake that are half the size of the larger cake. What is the volume in cubic inches of the smaller cake?
a. 90 in^3
b. 120 in^3
c. 240 in^3
d. 360 in^3
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rachel/411
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@AriPotta
AriPotta
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|dw:1354929324623:dw|
AriPotta
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so if one cake has a volume of 720, and the other has half the dimensions of the other one, what's the volume?
rachel/411
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720/2 u mean?
AriPotta
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no
AriPotta
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|dw:1354929477860:dw|
rachel/411
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oh. so, lemme c. brb
rachel/411
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mk. i think it is D.
AriPotta
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no. what's 720/8?
rachel/411
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90. srry
AriPotta
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so it's a :)
rachel/411
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thanks:)))
for some reason i insisted on 1/2
rachel/411
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*bangs head on wall*
AriPotta
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because the dimensions were halved :)
rachel/411
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ok. sorry.
rachel/411
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and tnx:)
rachel/411
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next q comimg up.. plus more medals:)
rachel/411
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tho ive a q
rachel/411
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how is it 1/8?
AriPotta
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because if you look at the picture, it proves that it's 1/8
rachel/411
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lemme look again
AriPotta
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|dw:1354930159525:dw|
rachel/411
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is it bcuz the small one is v=1 and the second one v=8?
AriPotta
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yes
rachel/411
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ooooh mk
rachel/411
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i draw the cubes,yes ?
AriPotta
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the original had a volume of 8. the one with halved dimensions had a volume of 1
AriPotta
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if you need to
rachel/411
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ok
rachel/411
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tnx again
AriPotta
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no problem
rachel/411
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:))