Find the value of n
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tejus53:
Please answer that I will under stand step by step
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(3)^3n-15 = 1/27 = (1/3)³
same base so powers can be equated
3n-15 = 3
3n = 18
n = 6
same base so powers can be equated
3n-15 = 3
3n = 18
n = 6
Answer is 4 my dear
Bases r not same
No
Is't power
Answered by
1
Answer:
4
Step-by-step explanation:
3^3n-15 = 1/27
3^3n/3^15 = 1/3^3
3^3n × 3^3 = 3^15(cross multiplication)
3^(3n+3) = 3^15
3n+3 = 15 (bases are same)
3n = 15-3 = 12
n = 12/3 = 4
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