Please help to solve q24 & 25 thanks
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Question
Answer
Please check if the answer for Question 24 is x = 1 and y = 0? If not, please provide the answer key.
Question 25:
(a) 32x+4 x 5x-2 = 33x x 52x
32x+4 52x
——- = ———-
33x 5x-2
32x+4-3x = 52x-x+2
34-x = 5x+2
34 3-x = 5x 52
5x 3x = 34 / 52 = 81 / 25
15x = 3.24
(b) x log 15 = log 3.24
x = log 3.24 / log 15 = 0.434 ( to 3 dec place)
Thanks Sushi 88, Adwin’s answer is correct. Your answer for q25 is correct too.
Thank you for letting me know.