$r^{3} = \frac{27}{8}$ $r^3=27/8$ How do you solve for r?

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$r^{3} = \frac{27}{8}$ $r^3=27/8$ HOW DO I SOLVE FOR R, because I know I can solve for exponent by using log but since this is the base how would i do it? step by step, please!

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Answer 1 · 2018-02-03T23:02:04

$r = \frac{3}{2} = 1.5$ $r=3/2=1.5$

$r = 3 \div 2$ $r=3-:2$

Becuase the Cube root of $27$ $27$ is $3$ $3$

And The Cube root Of $8$ $8$ is $2$ $2$

$r = \frac{3}{2} = 1.5$ $r=3/2=1.5$

Answer 2 · 2018-02-04T01:02:43

$r = 1.5$ $r=1.5$

$r^{3} = \frac{27}{8}$ $r^3=27/8$

Notice how,

$r^{3} = {(\frac{3}{2})}^{3}$ $r^3=(3/2)^3$

$:.r=3/2$

$r=1.5$