I sailed west to Hawaii against the wind at the speed of 12 knots/hour. When I returned, I sailed the same route with the wind at the speed of 18 knots/hour. What was my average speed for the entire trip?

Solve this system of equations: x=2y-8 4x+y=13

The product of two consecutive integers is 72. The equation x (x + 1) = 72 represents the situation, where x represents the smaller integer. Which equation can be factored and solved for the smaller integer?

Warren Weightlifter joined a health club. There was a $40 registration fee and a $27.50 monthly fee. If Warren visits the club 3 times a week for a year, what does each workout cost him?

How do you simplify this math problem 5 (1 + 3x) ?

Erin had 6 pens Justin gave her some more now she has 9 pens how many did Justin give her

What is the solution to - (5k + 6) = 3 (12 - k) ? A A - 15 C 21 B 15 D-21

What are the acceptable diameters for the golf ball

Kira wrote a total of 16 pages over 8 hours. How many hours will Kira have to spend writing this week in order to have written a total of 20 pages? Solve using unit rates.

Which expression is the result of factoring the expression below by taking out its greatest common factor? 12x2 + 8=?

The pH of a solution is a measure of the quantity of hydrogen atoms (H) in the solution. It is given by the formula f (x) = - log x.