4. last year there were 600 students
uere were 600 students at eastfield elementary school. this years
the number of students decreased by
year?
ased by 8%. how many students are at the school this

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)

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22