If square root of 5 - x = 4 , then x=
is it 11 or -11
show your work.
here's mine
square root of 5 - x =4
(square root of 5 - x)^2 = (4)^2
5 - x =16, x =
-5. -5, × =

x = 11

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?