Vations?
Multiply each equation by a number that produces opposite
coefficients for X or y.
42 + 5y = 7
3x + 2 y = -12
X

12 is 33 1/3% of 36 what is the whole

Find x & pleeeeaaaassseeee me !

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?