SOLUTION: Selling price of lumber at Home Depot, $4,000 Precent markup on cost, 30% Actual cost?

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Question 1132088: Selling price of lumber at Home Depot, $4,000
Precent markup on cost, 30%
Actual cost?
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

let the actual cost be $x, so:
x+%2B+30% of x = 4000, so
100x%2F100+%2B+30x%2F100+=+4000
130x%2F100+=+4000
130x+=+400000
x+=+400000%2F130
$x+=+3076.92->actual cost