A.= 9/8 OR 1 1/8
B.= 11/12
C.= 17/12 OR 1 5/8
Answer:
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Step-by-step explanation:
the picture
X=5 y=15 (5,15).
This is how you do it:
-4(2x+3y=55): -8x-12y=-220
3(9x+4y=105):27x+12y=315
You add the two new equations together, canceling out the y values, and get the x value. Then, you go back and plug in the x value in the original equation to get the y value.
4r^2=4 if r=1
2s^3=250 if s=5
