Answer:
(1,2)
Step-by-step explanation:
x+4y = 9
2x -4y= -6
Add the equations together
x+4y = 9
2x -4y= -6
-------------------
3x +0y = 3
3x=3
Divide by 3
3x/3 = 3/3
x=1
Now find y
x+4y = 9
1 +4y =9
Subtract 1 from each side
4y = 8
Divide by 4
4y/4 = 8/4
y =2
I would think 3? it should be 3 because 32*2=64 which isn’t everyone 32*3 is 96
79+12=91
Company A : 220 + 65h
Company B : 300 + 55h
How many hrs they will cost the same.....so set them equal to each other and solve for h(the number of hrs)
220 + 65h = 300 + 55h
65h - 55h = 300 - 220
10h = 80
h = 80/10
h = 8
220 + 65(8) = 740
300 + 55(8) = 740
so in 8 hrs, both companies charge $ 740