Find the greatest possible error for the measurement 4.7 cm. 0.05 cm 0.5 cm 1.0 cm

Mathematics

1 answer:

NeTakaya3 years ago

5 0

Answer:

0.05 cm

Step-by-step explanation:

The least-significant digit in the given measurement is the one in the 0.1 cm number place. The "greatest possible error" is half the value of that number place, so is ...

(0.1 cm)/2 = 0.05 cm . . . . "greatest possible error"

_____

For questions of this sort, we make the (not always practical) assumption that the measurement is rounded perfectly to the nearest 0.1 cm.

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The first barn contained 3 times more hay than the second one. After 20 tons of hay were removed from the first barn and 20 tons

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Answer:

Amount of hay in first barn = 90 tons

Amount of hay in second barn song = 30 tons

Step-by-step explanation:

Let the amount of hay in second barn be x, then hay in first barn will be 3x.

20 tons of hay was removed from first barn and ws added to second barn.

Now, the amount of hay in first barn = 3x -20

Amount of hay in second barn = x+20

The equation now formed is:

x+20 = $\frac{5}{7}$ (3x-20)

7x+14 = 15x -100

-8x = -240

8x = 240

x = 30

3x = 90

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Amount of hay in second barn song = 30 tons

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Step-by-step explanation:

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