Aclothing store offers very often various promotions to attract customers but wants to maintain the same amount of profit to do this the store mark up prices above retail and then advertises a deal that results in a markdown equivalent to a retail price. the retail prices of a necktie is $59.99 the store offers a buy 2 get 1 free deal on neckties. what is the new retail price during this promotion ? what is the markup ? what is the markup percent on a tie during the promotion?

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answer: solve 5\cdot 2^x=2405⋅2  

x

=2405, dot, 2, start superscript, x, end superscript, equals, 240.

solution

to solve for xxx, we must first isolate the exponential part. to do this, divide both sides by 555 as shown below. we do not multiply the 555 and the 222 as this goes against the order of operations!

\begin{aligned} 5\cdot 2^x& =240 2^x& =48 \\ \end{aligned}  

5⋅2  

x

2  

x

​    

=240

=48

​

step-by-step explanation: