Question

Mr. Inwood does a job in x hours while Mr. Lui can do it in y hours. How much of the job could they do it together if they were to work for k hours?

Answer 1

If they worked for k hours, the amount of work done would be $\mathbf{ \dfrac{k(x+y)}{xy}}$hours.

How do we determine the job done using algebraic expressions?

Algebraic expression involves the use of variables and their arithmetic operations.

Given that:

• Mr. Inwood does a job in x hours, while
• Mr. Lui can do it in y hours

If we have a function denoted by k (hours) indicating the work they both can do together. Then we can conclude that they can both work for:

$\mathbf{=\dfrac{k}{x}+\dfrac{k}{y}}$

$\mathbf{ \dfrac{k(x+y)}{xy}}$

Learn more about algebraic expressions here:

brainly.com/question/2164351

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