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NNADVOKAT [17]
3 years ago
15

PLZ HELP!!!! I will mark u the brainyest!!!answer only 1-4 questions!!

Mathematics
1 answer:
marishachu [46]3 years ago
8 0
1)180
2)79
3)9,100
4(:)540
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Solve the system r + s = -12
marshall27 [118]
<span> r + s = -12 so r = -s - 12
</span><span>4r - 6s = 12

substitute </span>r = -s - 12 into 4r - 6s = 12

4r - 6s = 12
4(-s - 12) - 6s = 12
<span>-4s - 48 -6s = 12
-10s = 60
     s = -6

r = -(-6) - 12
r = 6 - 12
r = -6

answer
</span><span>B -6,-6</span><span>

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