Solve the following system of equations

1)                   4x - 5y = -14

                       9x + 2y = -5

x=  y=

 

2)  the sum of two numbers is 40. the larger number is 16 more than the smaller number.  What are the numbers?

 

3)  The Miller family and the Carter family each used their sprinklers last summer. The water output rate for the Miller family's sprinkler was 15 L per hour. The water output rate for the Carter family's sprinkler was 30 L per hour. The families used their sprinklers for a combined total of 60 hours, resulting in a total water output of 1425 L. How long was each sprinkler used?

Miller family's sprinkler ? hours

Carter family's sprinkler ? hours