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3 years ago

What is the solution of the equation 53x = 15? Round your answer to the nearest ten-thousandth.

Mathematics

2 answers:

eimsori [14]3 years ago

6 0

53x = 15
x = 15 / 53 = 0.2830188679 
Which is not one of the answers.

Svetlanka [38]3 years ago

6 0

Answer:

Option D is correct.

Step-by-step explanation:

Given equation is $5^{3x}=15$

we have to find the solution of above equation.

Equation is

$5^{3x}=15$

Taking log on both sides, we get

$log{5^{3x}}=log{15}$

As, $log{a^b}=bloga$

⇒ $log{5^{3x}}=log{15}$

⇒ $3xlog{5}=log{15}$

⇒ $x=\frac{log{15}}{3.log{5}}=0.5608687\sim0.5609$

Option D is correct.

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Delvig [45]

Answer:

0.75 liters of 5% hydrochloric acid solution
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Let us assume that, x liters of the 5% hydrochloric acid and y liters of the 45% hydrochloric acid solutions are combined.

As Rajan need total of 1 liter of solution, so

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