A radioactive isotope that was originally 275 grams has decayed to 150 grams. the equation shown can be used to calculate the nu
2 answers:
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Answer:
<u>(a) x = 2</u>
Step-by-step explanation:
x - 12 = -8x + 6
First, move all the like terms to one side of the equation. We will move all the x's to the left, and the rest to the right in this equation. (Don't forget to pay attention to the signs of the numbers as you move them over the equal sign.)
x - 12 + 8x = 6
x + 8x = 6 + 12
9x = 18
Next, solve for x by isolating it to one side of the equation. Here, we'll have to divide 18 by 9 (do the opposite of what 9 is doing with x; instead of multiplying it with 18 like it currently is with x, divide 18 by it.)
x =
x = 2
Therefore, your answer is (a), since x = 2.
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From what I can see, you are on the right track.
one thing you could have done is combine like terms.
Now just take the square root of 7 squared. That takes out the squared making your answer 7 or G.
You were on the right track, you just skipped a step.
hope this helped!
one thing you could have done is combine like terms.
Now just take the square root of 7 squared. That takes out the squared making your answer 7 or G.
You were on the right track, you just skipped a step.
hope this helped!