Ascience teacher has a supply of 20% saline solution and a supply of 50% saline solution. how much of each solution should the teacher mix together to get 60 ml of 28% saline solution for an experiment

answer: i oofed

step-by-step explanation:

oofed=wow

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

ask for details followreport by buttfacelily 2 minutes ago

answers

rauschg

rauschg · hand

know the answer? add it here!

step-by-step explanation:

answer: its the third option.

step-by-step explanation:

i just took the test.

wait nvm i know the correct answer now its 100%   81 square feet

~batmans wife dun dun