What is the probability that, in a random sample of five north american adults, all watch television for more than 7 hours per d
1 answer:
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Answer: see below
<u>Step-by-step explanation:</u>
3(x - 12) > 5(x - 24)
3x - 36 > 5x - 120
<u> -5x </u> <u>-5x </u>
-2x - 36 > -120
<u> +36</u> <u> +36 </u>
-2x > -84
<u> ÷ -2 </u> ↓ <u> ÷ -2 </u>
x < 42
Graph: ←------------o
42
34) 6[5y - (3y - 1)] ≥ 4(3y - 7)
6[5y - 3y + 1] ≥ 4(3y - 7)
6{2y + 1] ≥ 4(3y - 7)
12y + 6 ≥ 12y - 28
<u>-12y </u> <u>-12y </u>
6 ≥ -28
TRUE so the solution is All Real Numbers
Graph: ←-----------------------→
36) BC + AC > AB
4 + 8 - AB > AB
12 - AB > AB
<u> +AB </u> <u>+AB </u>
12 > 2AB
<u> ÷2 </u> <u>÷2 </u>
6 > AB
AB < 6
Check: let y = 16
then (16 - 16) ≥ 16 + 2
0 ≥ 18
FALSE so the claim is wrong
40) question not provided in the image so I cannot give a solution.