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4. Solve. 2.7 ≤ b + 5 b ≥ 7.7 b ≥ –2.3 b ≤ 2.3 b ≤ –7.
asked
Apr 4, 2017
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4. Solve.
2.7 ≤ b + 5
b ≥ 7.7
b ≥ –2.3
b ≤ 2.3
b ≤ –7.
Mathematics
high-school
Vallo
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2
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1
vote
2.7
≤ b+ 5
=> 2.7 - 5
≤ b
=> -2.3
≤ b
The answer is option 2.
Gschambial
answered
Apr 5, 2017
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Gschambial
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4
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the answer is
2.7 ≤ b + 5 implies
2.7 - 5 ≤ b , –2.3 ≤ b
so the answer is
b ≥ –2.3
Lukasz Szozda
answered
Apr 9, 2017
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Lukasz Szozda
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