# math

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a park purchased equipment from a manufacturer for a list price of \$42,000 minus trade discounts of 30/20/15. How do you calculate the amount of the trade discount on the purchase?

• math -

So they pay .7(.8)(.85) or .476 of the original price
or they paid .476(42000) = 19,992

discount = 42000-19992 = 22008

discount rate = 22008/42000 = .524 or 52.6%

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