A teacher had $23.25 to buy 23 rewards. Balloons cost $0.75 and noise makes are $1.50. How many balloons did she buy?
2 answers:
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Answer: Work done by both of them in k hours is
Explanation:
Since we have given that
Number of hours Mr. I does a job = x hours
Number of hours Mr. L does a job = y hours
Work done by Mr. I is given by
Work done by Mr. L is given by
Work done if they do together is given by
Work done if they work together for k hours is given by
Hence, work done by both of them in k hours is
keeping in mind that a line with a slope of "0" is a horizontal line, Check the picture below.
