Equation 1: 2x – 3y = -1 Equation 2: y = x-1
Looking at the system of equations above.
1. Which equation is already solved for a specific variable?
2. What variable are you substituting in the first equation?

Cody worked 42.5 hours per week in july. this is 12.25 hours more per week than he worked in june.how many hours did cody work per week in june?

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.