A radiator contains 10 quarts of fluid, 30% of which is antifreeze. How much fluid should be drained and replaced with pure

antifreeze so that the new mixture is 40% antifreeze?

What is 51correct:9incorrect

Simplify the expression by combining like terms, if possible. If not possible, select "already simplified." 8-4t+6^2

The sum of two numbers is 300 and the two numbers have a ratio of 20:10. find the larger number

Which the number below has the least value?

7a + 3bc - 6c if a=1 b=1/3 and c=-2

What is the domain of f (x) = cos (x) ?

Mike and Kim invest $14,000 in equipment to print yearbooks for schools. Each yearbook costs $7 to print and sells for $35. How many yearbooks must they sell before their business breaks even?

What is the solution to the system of equations? Use the substitution method. j + k = 3 j - k = 7 A. The solution is (8, 1) B. The solution is (5, - 2) C. There is no solution. D. There are an infinite number of solutions.

30% of what number is 10.2

Long division 19 divide 23.94