SOLUTION: a salesman works on commission. if he receives $18.00 for selling a machine that cost $300, what is his commission rate?

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Question 100046: a salesman works on commission. if he receives $18.00 for selling a machine that cost $300, what is his commission rate?
Answer by tutorcecilia(2152) About Me  (Show Source):
You can put this solution on YOUR website!
a salesman works on commission. if he receives $18.00 for selling a machine that cost $300, what is his commission rate?
Use the formula for finding percentage:
%28Part%2FWhote%29 = %28Percent%2F100%29
.
%28%2418%2F%24300%29 = %28x+Percent%2F100%29 [Plug-in the know variables and solve for the unknown variable]
.
(18)(100)=(300)(x%) [cross-multiply]
.
1800=(300)(x%)
%28%281800%2F300%29%29 = %28300x%2F300%29 [solve for (x %)]
6=x%
or
x=6%
.
Checking:
%28Part%2FWhote%29 = %28Percent%2F100%29
%28%2418%2F%24300%29 = %286+percent%2F100%29
.06=.06 [checks out]