How many quarts of pure antifreeze must be added to 5 quarts of a 10% antifreeze solution to obtain a 50% antifreeze solution? quart(s) of pure antifreeze must be added.
(Round to the nearest tenth as needed.)

Sadie computes the perimeter of a rectangle by adding the length, l, and width, w, and doubling this sum. eric computes the perimeter of a rectangle by doubling the length, l, doubling the width, w, and adding the doubled amounts. write an equation for sadie’s way of calculating the

Determine the fraction of total interest owed. after the fourth month of a 12-month loan: the numerator is: {(n + ) + (n + ) + (n + ) + (n + )} = , and the denominator is: {(n) + (n + 1) + + (n + )} = . therefore, the fraction is numerator/denominator (to the nearest tenth) =

For what values of x is x2 + 2x = 24 true?