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Rama09 [41]
3 years ago
11

A watch lost 1 minute 18 seconds in 39 days. How many seconds did it lose per day?

Mathematics
1 answer:
vlabodo [156]3 years ago
6 0
ATO,
We should convert 1.18 minutes into seconds
1 minute = 60 seconds
60 + 18 seconds = 78 seconds
We should divide with the days
So,
78 seconds ÷ 39 days = 2 seconds per day.

So,it lose 2 seconds per day.

Please mark mine answer as Brainliest
Please click THANKS button
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Answer:

BC ≈ 19.4 cm

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Using the cosine ratio in the right triangle

cos71° = \frac{adjacent}{hypotenuse} = \frac{AB}{BC} = \frac{6.3}{BC} ( multiply both sides by BC )

BC × cos71° = 6.3 ( divide both sides by cos71° )

BC = \frac{6.3}{cos71} ≈ 19.4 cm ( to 3 significant figures )

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