Question

$\frac{x^{0.7}}{48} = \frac{36}{x^{2.3}}$

x = ?

• A. 23
• B. 10
• C. 12
• D. 70

Answer 1

Answer:

C. 12

$\frac{x^{0.7}}{48}=\frac{36}{x^{2.3}}$

$x^{0.7}\times{x^{2.3}}=36\times48$

$x^{0.7+2.3}=1728$

$x^3=1728$

$x=_3\sqrt{1728}$

$x=12$