3 years ago

1. 108 identical books have a mass of 30 kg. Find

Mathematics

1 answer:

AURORKA [14]3 years ago

8 0

Answer:

i) around 41.7 kg

ii) 72 books

Step-by-step explanation:

i) if 108 books are 30 kg then how much is the mass for 150? You cross multiply so 150 multiply by 30 and 108 multiply by x (the unknown mass). you will get 4500=108x and then 4500/108 is the unknown mass.

ii) use the same way as above.

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