The masses to the nearest 0.5 kg of two parcels are 1.5 kg and 2.5 kg .calculate the lower and upper bounds of their combined mass.​

Question

The masses to the nearest 0.5 kg of two parcels are 1.5 kg and 2.5 kg .calculate the lower and upper bounds of their combined mass.​

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Lyla 1 week 2021-10-11T19:38:17+00:00 1 Answer 0

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    2021-10-11T19:40:02+00:00

    Answer:

    (3.5, 4.5)

    Step-by-step explanation:

    The masses have a total margin of 0.5 kg, or ±0.25 kg.

    The mass of the first parcel is 1.5 kg ± 0.25 kg.

    The mass of the second parcel is 2.5 kg ± 0.25 kg.

    The combined mass is:

    (1.5 kg + 2.5 kg) ± (0.25 kg + 0.25 kg)

    4 kg ± 0.5 kg

    So the lower bound is 3.5 kg and the upper bound is 4.5 kg.

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