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vesna_86 [32]
3 years ago
15

26. If x:3 = 12:x, calculate the positive value of x.​

Mathematics
2 answers:
nydimaria [60]3 years ago
6 0

Answer:

Answer ::+-6

Step-by-step explanation:

x:3=12:x

or, x/3 = 12/x

Doing cross multiplication,

x^2=36

Putting sqare root on both sides,

x= sqrt. 36

x= +- 6

Therefore x=+-6.

9966 [12]3 years ago
6 0

Answer:

x = 6

Step-by-step explanation:

Express the ratio in fractional form, that is

\frac{x}{3} = \frac{12}{x} ( cross- multiply )

x² = 36 ( take the square root of both sides )

x = ± \sqrt{36} = ± 6

Thus x = 6 is the positive value

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