-6х-у = -27
18х+Зу=81

Solve the system of equations

The sixth grade art students are making a mosaic using tiles in the shape of right triangles.each tile has leg measures of 3 centimeters and 5 centimeters.i f there are 200 tiles in the mosaic what is the area of the mosaic.

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

Jimmy can run 3.5 miles in 20 minutes. how far can ne run in one hour and ten minutes?