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LUCKY_DIMON [66]
3 years ago
6

Each side of a rectangular prism measures 2 inches, and the height is 10 inches. What is the volume?

Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
6 0
V=lwh
evidently, l=w=2

so
h=10
l=2
w=2

v=2*2*10=40

answer is 40 in^3
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Volume of first oil = A, volume of second oil = B, volume of mixture = M
A = ?, B = 4l, M = A + B

40%A + 25%B = 30%M
40%A + 25%4l = 30%(A+4l)
<span>40%A + 25%4l = 30%A + 30%4l
40A + 100l = 30A + 120l
40A - 30 A = 120l - 100l
10A = 20l
A = 2l
</span>
Answer: 2 litres of 40% oil dressing.

Also note: That's an approximation, because the volumes are not strictly additive. For example: mixing 50ml pure ethanol with 50ml water will give you about 95ml of mixture. To get an accurate answer, you'd have to measure the volume of the final mixture and then divide your total oil content by that<span>.</span>
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3 years ago
What is the solution to the system of equations? Use the substitution method.
BabaBlast [244]
The answer is:
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8 0
3 years ago
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Answer:

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5 0
2 years ago
Read 2 more answers
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