3x – 4y> -6
2x + y<7
y>-3

For the 1st problem, solve the 2nd equation for x.

x = -1 - y

Now, replace x in the 1st equation with (-1 - y)

2(-1 - y) - 3y = 2

-2 - 2y - 3y = 2

-2 - 5y = 2

-5y = 4

y = -4/5

x = -1 - (-4/5) = -1 + (4/5) = -1/5

The solution is (-1/5, -4/5)

For the 2nd problem, multiply the top equation by 15 and the bottom equation by -12. That gives us:

10x - 12y = 15

-36x +12y = 84

Add the two together, which gives us:

-26x = 99

x = -99/26

Now, put this value of x into either equation to solve for y

3(-99/26) - y = -7

-297/26 - y = -7

-y = -7 + 297/26

-y = 115/26

y = -115/26

The solution to this system is (-99/26, -115/26)

answer: the answer is 35%

answer: .75 km

step-by-step explanation: