Kelsey's neighborhood has a straight road with stop signs at both ends and a fire hydrant at its midpoint. On a map, the fire hydrant is located at (12,7) and one of the stop signs is located at (3,11). Where on the map is the other stop sign located?

(21, 3)

Step-by-step explanation:

Stop 1 = (3,11)

Hydrant = (12,7)

Stop 2 = (x,y)

If the fire hydrant is at the midpoint on a straight line between both stop signs, the difference in the coordinates from stop 1 to the hydrant must equal the difference in coordinates from the hydrant to stop 2.

For the x coordinate:

For the y coordinate:

Therefore, the other stop sign is located at (21, 3)

step-by-step explanation:

one fourth of 9% = 2.25%

gavin is correct in saying : the equivalent quarterly interest rate would be

2.25%.