Mr. Lee can paint 20 chairs in t hours. He uses 3 liters of paint for every 12 chairs that he painted. How do you find, in terms of t, the number of chairs that he can paint in 3 hours?

Answer 1

See a solution process below:

This equation can be written as follows:

#t" hours" = 20" chairs"#

We can now multiply each side of the equation by #color(red)(3)# to find the number of chairs Mr. Lee can paint in 3 hours if he paints them continuously at the same rate.

#color(red)(3) xx t" hours" = color(red)(3) xx 20" chairs"#

#3t" hours" = 60" chairs"#

In three hours, Mr. Lee can paint sixty chairs.

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Answer 2

Eva Adamson

Mr. Lee can paint ( \frac{20t}{t} ) chairs in 3 hours.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.