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katen-ka-za [31]
3 years ago
6

If the mean of the four numbers 4, 8, 2x and 12 is 10, then x is

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
5 0

Answer:

8

4+8+2x+12=10*4

24+2x=40

2x=16

x=8

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