Jim and Regina can complete one job in 4 hours when working together. When working alone, Jim works twice as quickly as Regina. How long will it take each of them to do the job when working alone? If Regina works as quickly as Jim, how long will it take both of them to do the job working together?

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segment bisector

step-by-step explanation:

line segment bisector. definition: a line, ray or segment which cuts another line segment into two equal parts. try this drag one of the orange dots at a or b and note the the line ab always divides the line pq into two equal parts.

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