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3 years ago

11

Bill started to run on a treadmill after setting its timer for 84 minutes. The display says that he has finished 22% of his run.

How many minutes have gone by?
Round your answer to the nearest tenth.
minutes

1 answer:

Bond [772]3 years ago

3 0

Answer:

18.5 minutes

Step-by-step explanation:

84(mins) times .22(22%) equals 18.42 which rounds up to 18.5 mins

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Step-by-step explanation:

The titanium wire is experimenting an axial load. Ultimate strength equals $2.20\times 10^{8}\,Pa$ . The wire shall break if and only if stress is at least equal to ultimate strength. The equation for axial stress ( $\sigma$ ), measured in pascals, in the wire with circular cross-section is:

$\sigma = \frac{4\cdot F}{\pi\cdot D^{2}}$ (1)

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