Question

The mass of a uniform copper bar varies directly as its length. lf a bar 40cm long has a mass of approximately 420g, find the mass of a bar 136cm long. ​

Answer 1

Answer:

40 cm mass approximately 420 g

1 cm = 420 /40

so 136 cm long mass= 420 /40 × 136

=2856g

Step-by-step explanation:

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Answer 2

Answer:

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