Solve the system using elimination. 3x – y = 28 3x + y = 14

If lmn=xyz, which congruences are true by cpctc? check all that apply

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?