Answer:
The dependent variable is the amount of money you earn because the amount of money you earn depends on how many chores you do.
Equation 1:
x = (5y+11)/2
Substitute equation 1 to 2:
-2((5y+11)/2)+ 3y=-9
-2/2 = -1 thus -1(5y+11)
Continue...
-(5y+11)+3y=-9
-5y-11+3y =-9
(-5+3)y= 11-9
-2y = 2
y=-1
Substitute y into equation 1:
x=(5*-1+11)/2
x = 6/2=3
So y=-1 and x =3
You can find a common demominator and then change 8 1/4 into a mixed number and just subtract
The estimated answer would be 480.81
