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iogann1982 [59]
3 years ago
5

Joe gets 90% right on a quiz with 20 questions.

Mathematics
2 answers:
iragen [17]3 years ago
8 0

Answer:

I think the answers 18. hope this helps :)

ohaa [14]3 years ago
5 0

Answer:

the answer is 18

Step-by-step explanation:

20=100% incorrect

9/10=50% incorrect

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Which equation expresses 9-3 rewritten as an addition
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What do you get when you combine like terms what answer <br> −2k−(−5)+1
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-2k+6

Step-by-step explanation:

-2k-(-5)+1

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3 years ago
How many cubes with side lengths of 1/4 does it take to fill the prism?​
SCORPION-xisa [38]

Answer:

\large\boxed{224\ cubes}

Step-by-step explanation:

\bold{METHOD\ 1}\\\\\text{Calculate the volume of a prism:}\\\\V_{p}=(2)\left(\dfrac{7}{4}\right)(1)=3.5\ cm^3\\\\\text{Calculate the volume of a cube:}\\\\V_c=\left(\dfrac{1}{4}\right)^3=\dfrac{1}{64}\ cm^3\\\\\text{Calculate how many times the volume of the prism is greater}\\\text{than the volume of the cube:}\\\\\dfrac{V_p}{V_c}=\dfrac{3.5}{\frac{1}{64}}=3.5\cdot64=224

\bold{METHOD\ 2}\\\\2cm:\dfrac{1}{4}cm=2\cdot4=8\\\\\dfrac{7}{4}cm:\dfrac{1}{4}cm=\dfrac{7}{4}\cdot\dfrac{4}{1}=7\\\\1cm:\dfrac{1}{4}cm=1\cdot4=4\\\\8\cdot7\cdot4=224\ (cubes)

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