SOLUTION: If the rate of sales tax is increased by 2%, the selling price of an article goes up by 140. Find the marked price of the article.

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Question 892489: If the rate of sales tax is increased by 2%, the selling price of an article goes up by 140. Find the marked price of the article.
Found 2 solutions by lwsshak3, josmiceli:
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
If the rate of sales tax is increased by 2%, the selling price of an article goes up by 140. Find the marked price of the article
***
let x=marked price of the article
.02=140/x
x=140/.02
x=7000

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +t+ = the actual sales tax
Let +s+ = the actual selling price
Let +m+ = the marked price
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(1) +s+=+m+%2B+t+
(2) +s+%2B+140+=+m+%2B+t+%2B+.02t+
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Substitute (1) into (2)
(2) +m+%2B+t+%2B+140+=+m+%2B+t+%2B+.02t+
(2) +140+=+.02t+
(2) +t+=+140%2F.02+
(2) +t+=+7000+
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(1) +s+=+m+%2B+7000+
(2) +s+%2B+140+=+m+%2B+7140+
(2) +m+=+s+-+7000+
This is as far as I can go with it