Answer: x = 1, y = -2
Step-by-step explanation:
-9x+2y=-13
x= 13/9 + 2/9y
2x-9y=20
2(13/9+2/9y)-9y=20
<em>Substitute y with -2.</em>
<em />
x= 13/9+2/9(-2)
<em>After solving you'll see that 1 is a possible solution for x.</em>
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Check your answer
-9x+2y=-13
-9x1+2(-2) = -13
2x-9y=20
2x1-9(-2) = 20
-13 = -13
20 = 20
Therefore, x=1 and y=-2
I got A I hope this helps
Wouldent the answer be A because all percents are out of 100 so the 1.9 would be 9 over 100
Answer:
C
Step-by-step explanation:
When something repeats, it is often divided by a multipule of 9
when 1 number repeats, it's probably divided by 9,
exmaple, 1/9=0.111111111111
when 2 numbers repeat, then it is probaly divded by 99
example, 14/99=0.14141414
so
21. 0.4444444444=4/9
22. 0.21212121=21/99
