Question 186845
x=time running, y=time swimming



"She wants to spend a minimum of 8 hours a week exercising" ---> x+y ≥ 8


" she wants to swim 3 times the amount she runs" ----> y=3x



x+y ≥ 8


x+3x ≥ 8


4x ≥ 8


x ≥ 2 ... 2 hrs running minimum


y=3x


y=3(2)


y=6 ... 6 hrs swimming minimum