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castortr0y [4]
1 year ago
14

If 20 assemblers can complete a certain job in 9 hours, how long will the same job take if the number of assemblers is cut back

to 15?​
Mathematics
1 answer:
adoni [48]1 year ago
8 0

Answer:

6.75

Step-by-step explanation:

use the proportion:

1)  20:9=15:x

2)  20x=135

3)  x=6.75

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