Acar drove at 43 miles per hour for 7 hours. how many miles are left if the entire trip is 400 miles?

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?

Triangle knm is what is true about the sides of knm

Put the equation in slope intercept form by solving for y