18% of what number is 43?

Answer 1

#238 8/9#

You can always do percentage questions by using direct proportion. Match the numbers with the correct percentage and cross multiply.

The number itself is #100%#

#18%# of it is #43#

#x/100 = 43/18" "(larr"numbers")/(larr"percentages")#

#x = (43 xx100)/18#

#x = 238 8/9#

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Answer 2

Hazel Anglin

#N = 4300/18 = 2150/9#

Given: #18% " of "N = 43#

Typically "of" means #xx;# "is" means #=#

#%# always refers to of each 100.

Mathematical equation: #18/100 xx N = 43#

Multiply both sides by the inverse of the % term: #cancel(100)/18 xx 18/cancel(100) xx N = 43 xx 100/18#

#N = 4300/18 = 2150/9#

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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.