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natita [175]
2 years ago
14

On a survey ⅞ students said that they preferred music over Art of those students who chose music 5/7 of them want to learn a ins

trument what fraction represents the students who chose music and want to learn an instrument
Mathematics
1 answer:
SashulF [63]2 years ago
5 0

Let x be the total number of students.

We know that 7/8x chose music over art.

5/7 of those students want to learn an instrument, so we have to multiply the number of students who chose music by 5/7:

\dfrac{7x}{8}\cdot \dfrac{5}{7}=\dfrac{5x}{8}

So, 5/8 of the students want to learn an instrument.

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solong [7]

Answer:

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Step-by-step explanation:

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Given i.i = j.j = k.k =1 and i.j=j.i=j.k=k.j=i.k = 0

∇f(1, 2, 0)*v = 0(i.i)+4*0(j.j)+2(-1)k.k

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Hence, the directional derivative of f at (1, 2, 0) in the direction of v = i + 4j − k is -2

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3 years ago
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2 years ago
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