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jonny [76]
3 years ago
10

Sophie Ruth is eating a 50-gram chocolate bar which contains 30%, percentcocoa.

Mathematics
1 answer:
Scorpion4ik [409]3 years ago
7 0
X/50=30/100
15 grams of cocoa
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Mr Nersin likes to ride his bike. He rode for 1/2 hour. After a short rest, he rode 1/10 hour more. He traveled 4 miles in all.
vodomira [7]
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The time for which Mr.Nersin rode first = 1/2 hour
The time for which Mr.Nersin rode after a short rest = 1/10 hour
Then
The total time for which Mr.Nersin rode = (1/2) + (1/10) hour
                                                                = (5 + 1)/10 hour
                                                                = 6/10 hour
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So
Average speed of Mr. Nersin = Distance traveled / Time taken
                                                = 4/(3/5) miles/hour
                                                = (4 * 5)/3 miles/hour
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So the average speed at which Mr.Nersin traveled is 6 2/3 or 6.67 miles per hour.
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