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Lelechka [254]
4 years ago
14

An octopus weighed 5 6 kilograms. After two weeks, its weight was increased by 3 10 kilograms. But afterward, it lost 1 5 kilogr

ams in weight as it was sick. What is its current weight?
Mathematics
1 answer:
svetlana [45]4 years ago
3 0

Answer:

The current weight of the octopus is:

w = \frac{14}{15}\,kg

Step-by-step explanation:

The current weight is determine by addition and subtraction of rational numbers:

w = \frac{5}{6}\,kg + \frac{3}{10}\,kg -\frac{1}{5}\,kg

w = \frac{50 + 18}{60}\,kg - \frac{1}{5}\,kg

w = \frac{68}{60}\,kg - \frac{1}{5} \,kg

w = \frac{17}{15}\,kg - \frac{1}{5}\,kg

w = \frac{85-15}{75} \,kg

w = \frac{70}{75}\,kg

The current weight of the octopus is:

w = \frac{14}{15}\,kg

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