Jamel watched his older brother Robert lift weights. The bar alone had a mass of 20 kg. On the bar he had tow 11.4 kg weights, two 4.5 kg weights, and four 450 g weights. What mass was Robert lifting?

Question

Gunner

Mathematics

15 February, 01:57

Jamel watched his older brother Robert lift weights. The bar alone had a mass of 20 kg. On the bar he had tow 11.4 kg weights, two 4.5 kg weights, and four 450 g weights. What mass was Robert lifting?

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Answers (1)

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Allison Randolph · Answer 1

All you do is add them all together ...

20 + 11.4 + 11.4 + 4.5 + 4.5 + 0.45 + 0.45 + 0.45 + 0.45 = 53.6Kg

(note that 0.45 is 450g in Kg, When adding things such as weight or length you want to make sure that they are all in the same unit)