Question

Solve this system by graphing.
-x+4y=-2
-2x+5y=-4

Answer 1

@whpalmer4

Answer 2

(-x+4y=-2)x2--->1
-2x+5y=-4--->2
resultant
-2x+8x=-4--->1
+2x-5y=+4--->2

3y=0
y=0
subs y=0 in equa 1
-x+4(0)=-2
x=2
subs x=2 and y=0 in equa 2
-2(2)+5(0)=-4
-4=-4

Answer 3

Can you help me with another one?

Answer 4

2. Makenzie is responsible for buying a weeks supply of food and medication for the puppies and kittens at a local shelter. The food and medication for each puppy costs twice as much as those supplies for a kitten. She needs to feed 164 kittens and 24 puppies. Her budget is $4,240. How much can she spend on each puppy for food and medication?
1. $20
2. $40
3.$60
4.$80

Answer 5

@campbell_st

Answer 6

it is 2 or 4

Answer 7

I think it might be 4.

Answer 8

I need help with another one?