Five years ago, a typical 70” tv cost about $2400. now a similar tv costs approximately $1680. what is the percent decrease in tv price?

The percentage decrease in TV price after five years is 6.89

Step-by-step explanation:

Given as :

The cost of TV five years ago = $ 2400

The present cost of TV = $ 1680

Let The decrease percentage in five years = x

So, The cost of TV after T year = Present cost ×  

Or, $ 1680 = $ 2400 ×  

Or, 0.7 =    

Or,   = 1 -

Or, 0.9311 = 1 -

Or,  = 1 - 0.9311

∴,  = 0.0689

I.e x = 0.0689 × 100 = 6.89

Hence The percentage decrease in TV price after five years is 6.89 Answer

6.9

step-by-step explanation:

simple math really

6 1/2 times 0.6 = 3.9

but if you are just doing 6 and not 6 1/2 then the answer is 3.6

x=30

step-by-step explanation: