two men working together can complete a job in 1 hour 20 minutes. the first man working alone can complete the task in two hours
. how long will it take the second man to finish the job if he worked alone
1 answer:
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Answer:
300%
Step-by-step explanation:
Given
Required
Find the percentage change in y when x decreased by 50%
First, convert to equation
Where k is the constant of proportionality
When x decreased by 50%
Expand
Substitute for y
The percentage change is then calculated as:
<em>The percentage in y is 300%</em>