91.80=24+2b×0.85 solve
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Answered by
1
Step-by-step explanation:
the correct answer is
b=42
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Answered by
1
Answer:The solution is b=39.88
Step-by-step explanation:
The given equation is:
91.80=24+2b×0.85
⇒ 9180/100=24+(2b×85)/100
⇒ 9180=2400+2b×85
⇒ 2×4590=2×(1200+b×85)
⇒ 4590=1200+b×85
⇒ 4590-1200=b×85
⇒ 3390=b×85
⇒ 3390/85=b
⇒ b=678/17
∴b=39.8823529412≈39.88
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