Homework Help: algebra 2

Posted by jennifer on Saturday, January 22, 2011 at 11:47pm.

a store is offering a discount of 30% on a suit. There is a sales tax of 6%.

A) using a composition of function, represent this situatio in which the discount is taken before the sales tax is applied. the answer is (1.06)(.7x) = .742x

B) using a composition of functions represent the situation in which the sales tax is applied before the discount is taken.the answer is (1.06x)(.7) = .742x

C) compare the composite functions from parts a and b. does one of them result in a lower final cost? explain why or why not.

i don't understand c can you help?

algebra 2 - helper, Sunday, January 23, 2011 at 12:07am
Plug a value for x (price of the suit) in each equation and then solve each equation.

This way you can see if one results in a lower price.

Explain why or why not, one equation results in a lower price.
algebra 2 - jennifer, Sunday, January 23, 2011 at 12:19am
it dosnt give me a price for the suite so i shuld make one up?
algebra 2 - helper, Sunday, January 23, 2011 at 12:39am
yes, make one up

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