3 years ago

Help me pleaseeee????!

Mathematics

1 answer:

Veseljchak [2.6K]3 years ago

7 0

The answer is A because if u shift 4 units up then it's +4

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Step-by-step explanation:

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$\frac{17}{5} = \frac{34}{x}\\Now\ let\ us\ cross-multiply\\17 \times x = 5 \times 34\\17x = 170\\dividing\ both\ sides\ by\ 17 \\x = \frac{170}{17} \\x = 10$

∴ 10 teeth must go on the driven gear

hence ratio = 34:10

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