Answer:
Step-by-step explanation:
1. expand.
2. Subtract 8x from both sides.
3. simplify 10x - 2 - 8x to 2x - 2.
4. Add 2 to both sides.
5. Simplify 6+2 to 8.
6. Divide both sides by 2.
7. Simplify 8/2 to 4.
8. switch sides.
Therefor, rhe answer is x=4
Answer and Step-by-step explanation:
Alot of these can be solved with the table up above the problems.
<h2>A, B, and C.</h2><h2></h2>
According to the table, every time a value has an exponent of 0, it would equal to 1. Since all A B and C values follow the 0 exponent, their value is 1.
<h2>D.</h2><h2 />
According to the table, when we have a negative exponent, the number gets turned into a fraction of
Since our value is 9^-2, do as followed :
Solve what is 9^2 :
This question is different, since we have to go backwards, we have to switch the negative exponent to a positive exponent and rid the fraction.
Since we have one negative exponent, follow the fraction rule but instead of having one as the numerator, have 5a^3.
Since -3 is in parenthesis, we can rid the negative along with the parenthesis :
Follow the negative exponent rule :
Follow the negative exponent rule yet again :
Answer:
27 children.
Step-by-step explanation:
We are told that at the newest animated movie, for every 9 children, there are 4 adults. There are a total of 39 children and adults at the movie.
We can see that number of children is proportional to number of adults. So we will use proportions to solve for number of children at the movie.
Let us substitute number of children and adults in our proportion.
Multiply both side of equation by 39.
Therefore, 27 children are at the movie.