Y
1. Clark is trying to find his way out of a cave. The main
trail (in blue) that he came in on seems to go well out of
his way and he finds a shortcut that he thinks will make
the trip much quicker.
Main Trail
Special Tunnel
Cave Entrance
6
a) How far is Clark from the Cave Entrance if he takes the
Special Tunnel marked in red?
(show your work)
-8
-4
6
Clark
b) How far will he have to travel if he takes the Main Trail
route that he came in on?
(show your work)

Ok here we go ..there are plenty of ways to solve such math problems but we will go for the smartest and easiest ..5x+2y=7  -2x+6y=9we rearrange them into the following ..by multiplying the 1st equation by 2 it becomes 10x + 4y = 14we rearrange it and so it becomes 10x = 14 - 4yas for the second equation we multiply it by 5 and rearrange it so it becomes as to the following ..-10x + 30y = 45rearranging so 10x = 30y -45now 10x equals both 14 - 4y and 30y -45so   14 - 4y = 30y -4531 = 26yy= 31/26 = 1.19 or around 1.2so by now we can calculate x easily as  -2x+6y=9so 2x = 6y -9 = 6 * 31/26 - 9 = -1.84  then x = - 0.92 or around -0.9best luck!