Três torneiras enchem uma piscina em 10 horas quantas horas levarão 10 torneiras para encher 2 piscinas

Ten times the square of a non-zero number is eqaul to ninety times the number

Examine this system of equations. what integer should the second equation be multiplied by so that when the two equations are added together, the x term is eliminated? 3/4x+1/7y=6 1/8x-3/5y=16

Mr. chen is parking in a lot downtown. the graph shows the relationship between the time and the total cost of parking. evaluate the function for input of 10.