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svet-max [94.6K]
3 years ago
13

Work out the mean of these three numbers

Mathematics
1 answer:
maxonik [38]3 years ago
6 0

Answer:

110

Step-by-step explanation:

Let the three numbers be 100, 110 and 120

100 + 110 + 120 = 330

Total numbers = 3

mean =  \frac{330}{3}  = 110 \\

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In order to find the speed of each plane we first need to know the relative speed between them, since they are flying in oposite directions their relative speed is the sum of their individual speeds. In this case the speed of the first plane will be "x" and the second plane will be "y". So we have:

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