You need 480 ml of a 50% alcohol solution. on hand, you have a 40% alcohol mixture. how much of the 40% alcohol mixture and pure alcohol will you need to obtain the desired solution?
you will need
ml of the 40% solution
and
ml of pure alcohol

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers