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Posted by **love** on Tuesday, January 31, 2012 at 6:09pm.

- college alg -
**Reiny**, Tuesday, January 31, 2012 at 6:28pmlet selling price be x

.9x = 1.3(97)

x = 126.1/.9 = 140.11

check

marked selling price = 140.11

actual selling price = .9(140.11) = 126.10

profit = 126.10-97 = 29.10

percentage of profit based on cost price

= 29.10/97 = .29998969

= 30%

- college alg -
**love**, Tuesday, January 31, 2012 at 6:36pmi wanted to ask where did u get .9x from and 1.3 from

- college alg -
**Reiny**, Tuesday, January 31, 2012 at 8:02pmA 10% discount means to take away 10% , leaving 90% or .9

a 30 % profit is 100% + 30% = 130% = 1.3

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