Nada is at the supermarket. She wants to buy a chocolate and a juice that both cost $10. How much will she pay at the cashier if there is an additional tax rate of %16 on them?

Total cost = Price of juice + price of chocolate + tax = 10 + 10 + [(16/100) x 20]

                                                                                      = 20 + 3.2

                                                                                      = $23.2

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)

60%