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30/40 Maybe I am guessing sorry if it is wrong Please mark me as brainliest
1: (-1,-1) is (x, y) to see if it is a solution, you would just plug in x and y and see if the equation is true.
-4 (-1) + 2(-1) = 2
4 + -2 = 2
2 = 2 CORRECT
So... plug in x and y in the second equation to Make sure it works for that one too.
-1 + -1 = -2
-2 = -2 CORRECT
So, yes. (-1,-1) is a solution to both equations.
144/200=0.72 or 72%
225/100=2.25 or 225%
42/50=0.84 or 84%
Brainliest?
Part A.
y=4x+3
Part B.
11=4x+3
8=4x
2=x
2 dollars
Part C.
4(3)+4(2)=12+8=20
It would be enough if there is no sales tax.
Hope this helps!
Your fortune is "Only one fortune a day!"
