, 24.01.2020BreBreDoeCCx

# Allison stacked her cubes to make this rectangular prism. how many cubes did allison use?  naomicervero
She had  used 20 because 4x5 =20 ash3246
In this case, you simply count how many cubes are in the length, width, and height and multiply them together. In the example problem, the answer is 75 blocks because the dimensions are 5 x 5 x 3. swelch2010
I FOUND YOUR COMPLETE QUESTION IN OTHER SOURCES.
SEE ATTACHED IMAGE.
The problem can be modeled as a pair of matrices:
First matrix:
(4) * (4) = 16
Second matrix:
(16) * (5) = 80
Since the second matrix depends on the first, then the number of cubes is:
N = 80
80 cubes.  riverviewfarm2133
Counting each visible cube, and multiplying it by 2, he used 112. If you counted them, there would be 56 cubes. You'd multiply by 2 for the non-visible ones. whitethunder05 khynia11 Yuii
20x2 this means that 20 times two equals 40 neariah24
Idk may you she should have counted nmp jk its 36  ### Other questions on the subject: Mathematics Mathematics, 21.06.2019, orteg555a
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