compound Inequalities?
I nvr learned how to do this -.-( HELP ) THANKS : )
1. k+2>12 and k+2≤18
2.d-4>3 or d-4≤1
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I nvr learned how to do this -.-( HELP ) THANKS : )
1. k+2>12 and k+2≤18
2.d-4>3 or d-4≤1
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Verified answer
1. k+2>12 and k+2≤18 ...subtract 2 from each side of each equation...
So k>10 and k ≤ 16.
Hence 10 < k ≤ 16
2.d-4>3 or d-4≤1 ...add 4 to each side of each equation...
So d > 7 or d ≤ 5