The mean of four consecutive even numbers is 15. what's the greatest and smallest of these numbers?

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4