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Tcecarenko [31]
3 years ago
9

Write down a fraction whose value lies between 3 and 4; whose denominator is a multiple of 5; whose numerator is a multiple of 1

1, and whose denominator is less than 17. How many can you find? This may look hard, so instead, try the following sequence derived from it: Write down a fraction whose value lies between 3 and 4. Write down a fraction whose value lies between 3 and 4 and whose denominator is a multiple of 5; find a way to write down all such fractions.
Mathematics
1 answer:
slamgirl [31]3 years ago
6 0

Answer:

  33/10 and 55/15

Step-by-step explanation:

Possible denominators that are multiples of 5 less than 17 are 5, 10, 15.

Corresponding numerator ranges are [15, 20], [30, 40], and [45, 60]. In only two of these ranges are there any multiples of 11.

  33 in [30, 40]

  55 in [45, 60]

So, there are only two possible fractions meeting your requirement:

  33/10 and 55/15

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(-8,8)

Step-by-step explanation:

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|n| < 8.  The solution set includes all real numbers between -8 and 8, but not -8 itself or 8 itself.

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If a 24-kg mass stretches a spring 15 cm, what mass will stretch the spring 10 cm
natulia [17]

Answer:

<h2>16kg</h2>

Step-by-step explanation:

 This problem is borers on elasticity of materials.

according to Hooke's law,<em> "provided the elastic limit of an elastic material is not exceeded the the extension e is directly proportional to the applied force."</em>

F= ke

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24*9.81=k*0.15\\235.44=k*0.15\\k=\frac{235.44}{0.15} \\k=1569.6N/m\\

We can use this value of k to solve for the mass that will cause an extension of  10cm= 0.1m

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