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3 years ago

Which expression is equivalent to 15 n=10 (n+3/n)?

Mathematics

1 answer:

Karolina [17]3 years ago

3 0

Answer:

±√6

Step-by-step explanation:

$15n=10(n+\frac{3}{n} )$ is your expression first muiltiply out the 10 to get 15n= 10n+10 3/n next subtract 10 n from both sides to get 5n=10+3/n multiply both sides by n to get 5n^2=13 combine both sides and use the quadratic equation to solve to get your solution of ±√6

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2 years ago

What is the solution to this equation?<br><br> –5(s – 30) = –10

dimulka [17.4K]

<span>Simplifying -5(s + -30) = -10
Reorder the terms: -5(-30 + s) = -10 (-30 * -5 + s * -5) = -10 (150 + -5s) = -10
Solving 150 + -5s = -10 Solving for variable 's'.
Move all terms containing s to the left, all other terms to the right.
Add '-150' to each side of the equation. 150 + -150 + -5s = -10 + -150
Combine like terms: 150 + -150 = 0 0 + -5s = -10 + -150 -5s = -10 + -150
Combine like terms: -10 + -150 = -160 -5s = -160 Divide each side by '-5'. s = 32
Simplifying s = 32</span>

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4 years ago

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