Shawna wants to make a 10% alcohol solution. She has already poured 10L of pure water into a beaker. How many L of 60% alcohol solution must she add to this to create the desired mixture?

Simplify each expression by combining like terms. x^2 + x (x - y) + 10xy

Solve x2 = 12x - 15 by completing the square. Which is the solution set of the equation?

What is the percent of change of 120 meals to 52 meals

If f (x) = -10x+2, then f^-1 (x) = ?

If there are five choices on a multiple choice test, what is the probability of guessing any of them correctly? a. 5 b. 1/4 c. 1/5 d. 2/5

Into which range (response 1,2, or3) following value fall:3.5

What's the anewer to this problem ... ? 21*__=9*21 tell which property you used 21*=9*21 Property of multiplication ...

Part A Joan bought a soft drink for 3 dollars and 8 candy bars. She spent a total of 43 dollars. How much did each candy bar cost? Which equation matches this problem? Part B How much did each candy bar cost?

Alex draws an angle that measures 110 degrees. He then draws a ray that divides the angle into 2 equal parts. What is the measure of each smaller angle?

What does an APR of 14.2% mean?