jazmaine1217
06.01.2020 •
Mathematics
What percent of four hours is 8 seconds
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Ответ:
60 minutes per hour
4 x 60 = 240 minutes
60 seconds per minute
240 x 60 = 14400 seconds
8/14400 = 0.0005555
= 0.055 % round off to 0.06%
Ответ:
2n + 2n + 2n + 1 + 3 + 5 = 87
6n = 78
n = 13
so the 3 lengths are 27, 29 and 31
So length of the longest side = 31 cms answer