Forty liters of a 60% disinfectant solution are to be mixed with a 10% solution to dilute it to a 20% solution. how much of the 10% solution must be used?

The expression 1.01*1.005(^t) gives the amount of money, in thousands of dollars, in carter's savings account (t) years after he opens it. what does 1.01 represent in this expression?

Talia took the bus from her home to the bank and then walked back to her home along the same route. the bus traveled at an average speed of 40 km/h and she walked at an average speed of 5 km/h. to determine the time, x, that it took talia to walk home, she used the equation 40(0.9 – x) = 5x. the time of trip 2 is hours. the distance of trip 1 is km.

Given the equation −4  = 12, solve for x and identify if it is an extraneous solution.