Arectangular field that measures 15 ft by 20 ft must be increased by a scale factor of 1.8. the new dimensions of the field will be ft by 36 ft.

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.