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The sum of two numbers is 48. One number is 3 times as large as the other. What are the numbers?

Answer 1

The two numbers are
#22.5 and 25.5#

Let the numbers be #x and y.# #y-x=3# #y+x=48# Adding the above expressions #2y=51# #y=51/2=25.5# Subtracting the above expressions #-2x=-45# #x=(-45)/(-2)=22.5#

Check: #lhs=y-x=25.5-22.5=3=rhs# #lhs=x+y=22.5+25.5=48=rhs# The two numbers are #22.5 and 25.5#

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Answer 2

Eli Assouline

The numbers are 12 and 36.

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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.

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