7.50x plus 4.50y is equal to 3150 , what is x and y equal to.

X+y=-4 x-y=2 use elimination with adding and subtraction

Norder to get a certain shade of blue paint, a mixer must have 5 parts white paint to 3 parts blue. if 4 gallons of paint must be mixed, how many gallons of white paint must be used?

The slope of the line whose equation is 3y = 2x - 3 is 2 2/3 3/2