How much of an alloy that is 40% copper should be mixed with 300 ounces of an alloy that is 80% copper in order to get an alloy that is 50%?

What is 0.23 rounded to the nearest tenths

The slope on a graph

Earl run 75 meters in 30 sec. How many meters does earl run per second

Express 3 * (4*5) as a common fraction given a*b = ab/a+b.

Simplify: - 3 (m - 2) - 7m A. - 10m + 6 B. - 4m + 6 C. 4m - 6 D. 10m + 6

Translate this sentence into an equation. The sum of 14 and Mabel's score is 56. Use the variable m to represent Mabel's score.

A quadratic equation in form ax2 + bx + c = 0 cannot have: a. one real solution. b. one imaginary solution. c. two real solutions. d, two imaginary solutions.

The pH of solution A is 2.4 , while the pH of solution B is 9.4. (a) What are their hydrogen-ion concentrations? (b) How many times greater is the hydrogen-ion concentration of solution A than that of solution B?

Which equation has a variable term in the equation - 6 + 2X = 6x - 9

On may 31, the cash account of bottle's r us had a normal balance of $5,000. during may, the account was debited for a total of $12,200 and credited for a total of $11,500. what was the balance in the cash account at the beginning of may?