SOLUTION: the number 40 is 80% of what number

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Question 1047683: the number 40 is 80% of what number
Found 2 solutions by ewatrrr, ikleyn:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
.80n = 40
n = 40/.80 = 40%2F%288%2F10%29+=+400%2F8+ = 50

Answer by ikleyn(52787) About Me  (Show Source):
You can put this solution on YOUR website!
.
Answer. 50. 

80% of the unknown number "x" is 0.8*x.


So, 0.8x = 40,  x = 40%2F0.8 = 50.


There is a bunch of lessons on percentage problems in this site:
    - Percentage problems
    - Percentage word problems (Type 1 problems, Finding the Part)
    - Percentage word problems (Type 2 problems, Finding the Rate)
    - Percentage word problems (Type 3 problems, Finding the Base)