Question 1022013: A city's streets are laid out in a rectangular grid, with all blocks equal size.
Kendra catches a taxi from home and rides 6 blocks east to the pharmacy. After filling her prescription she catches another taxi 7 blocks north to the pet shop. After buying her dog a new toy she catches a third taxi 5 blocks west to the dry cleaners.
If Kendra catches another taxi and ask to be driven, how many blocks will the ride be?
Answer by Fombitz(32388)   (Show Source):
You can put this solution on YOUR website! I assume driven home.
Starting at (0,0),
To the pharmacy,
(0,0)+(6,0)=(6,0)
To the pet shop,
(6,0)+(0,7)=(6,7)
To the dry cleaners,
(6,7)+(-5,0)=(1,7)
Back to home,
(1,7)+(X,Y)=(0,0)
X=-1. One block west,
Y=-7. Seven blocks south.
8 blocks total.
|
|
|
