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In a hospital, there are 2 nurses for every 5 patients. How many nurses would probably be on duty if there were 155 patients in the hospital?

Answer 1

Easy way: #155/2=31# Then take #2*31# to get the number of nurses which is #61#

Harder way: #2/5*x/155# Then cross multiply. You should get #5x=310#. Then to get #x# by itself, divide both sides by #5# to get #x=62# and that's the number of nurses on duty if there were #155# patients in the hospital.

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Answer 2

Julia Adams

If there are 2 nurses for every 5 patients, then the ratio of nurses to patients is 2:5. To find out how many nurses would be on duty if there were 155 patients, we set up a proportion: 2/5 = x/155. Solving for x, we find that x is equal to (2/5) * 155, which equals 62. So, there would probably be 62 nurses on duty if there were 155 patients in the hospital.

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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.