Paola was asked to find the original dimension of an

Trigonometry hellllllpppppppp asap

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?

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?