How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid to obtain a mixture containing a 40% solution of acid?

2x^2 - 8x + 1 = 0 solving using quadratic formula round to the nearest 10

Simplify: 5P3 A. 10 B. 15 C. 30 D. 60

Seven is at least the sum of three times a number and five

Find the value of the discriminant. 2x^2+12x-13=0 then Determine the number and type of roots.

10 divided by 1/6 Word problems

The scale factor of the blueprint of a garage door to the actual garage door is 0.05. the are of the actual garage door is 220 ft^2. What is the area of the garage door on the blueprint? A. 0.55ft^2 B. 5.5ft^2 C. 11ft^2 D. 55ft^2

Which of the following represents side lengths that form a Pythagorean triple? A. 7, 8, 9 B. 1, 2, 3 C. 4, 5, 6 D. 3, 4, 5

Gwent pour 256 milliliters of water in to Ravi Henry pours 189 milliters of water in to Ravis. Ravis now contains 800 Milliters of water hiw nuch water was in Ravis to begin with?.

Rosa has a garden divided into sections. She has 125 daisy plants. if she plants an equal number of the daisy plants in each section of daisies, will she have any left over? If so, how many daisy plants will be left over?

Simplify. 9x^8-18x^6