jeanlucceltrick09
10.10.2021 •
Mathematics
A five-speed bicycle has a chain linking the pedal sprocket to the gears on the rear wheel. The ratio of pedal turns to rear-wheel turns in first gear is 8 to 17. How many times in first gear does the rear wheel turn if the pedals turn 160 times?
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Ответ:
9514 1404 393
340
Step-by-step explanation:
Multiply each number in the ratio by 20:
pedal : wheel = 8 : 17 = 160 : 340
The rear wheel turns 340 times when the pedal turns 160 times.
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Additional comment
As a reasonableness check, realize that 17 is just slightly more than 2 times 8. Then the number of rear wheel turns will be slightly more than 2 times 160.
Ответ:
48
Step-by-step explanation: