chrisgaz14
12.07.2019 •
Mathematics
Marks age is,t,is 3 times his age 10 years ago
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Ответ:
Ответ:
t = 3(t - 10
3t - 30 = t
2t = 30
t = 15
Ответ:
7.4² + b² = 16²
54.76 + b² = 256
256 - 54.76 = 201.24
b² = 201.24
√b = √201.24
b = 14.19 cm
The approximate height of the hat is 14.19 cm