SOLUTION: Find the single-discount equivalent of a 40/30/10 seres discount. Express the discount as a percentage and as a decimal.

Question 168789: Find the single-discount equivalent of a 40/30/10 seres discount. Express the discount as a percentage and as a decimal.
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
100-40=60%
100-30=70%
100-10=90%
in decimal form these are .6,.7,and .9 respectively
let x be the original cost
multiply these together .6(.7)(.9)x=.378x % of x is the new cost of the item.
:
In order to get the discount percentage you must
take 100% and subtract out the new cost %(37.8%)=% or

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