The total length of 3 boards was 21.35 m. If one board was 8.2 m long and another was 6.42 m long, how long was the third board?
2 answers:
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Answer:
x = 95
Step-by-step explanation:
Using the rule of logarithms
• x = n ⇔ x =
Given
(x + 30) = 3, then
x + 30 = 5³ = 125 ( subtract 30 from both sides )
x = 95