4. Solve. 2.7 ≤ b + 5 b ≥ 7.7 b ≥ –2.3 b ≤ 2.3 b ≤ –7.

asked Apr 4, 2017 228k views

3 votes

4. Solve.

2.7 ≤ b + 5
b ≥ 7.7
b ≥ –2.3
b ≤ 2.3
b ≤ –7.

by Vallo

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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

7.1k points

4 votes

the answer is
2.7 ≤ b + 5 implies 2.7 - 5 ≤ b , –2.3 ≤ b
so the answer is b ≥ –2.3

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