The number of books which Mr. Hartzel has now is:
<h3>What is Algebra?</h3>
This refers to the use of calculations to solve mathematical problems. There are different ways in which algebra is used and this can include addition, subtraction, division, etc.
With this in mind, we can see that Mr Hartzel had 12 books in his library
Then he got 9 new books and then sold off 6 books.
Therefore, the total number of books which he has now is:
12+9-6= 15 books
Read more about algebra here:
brainly.com/question/6143254
Answer:
x = 1/2
Step-by-step explanation:
First you want to get rid of the fraction, so you can multiply both sides of the equation by 3.
9 = 2x + 8
Then, subtract 8 from both sides to get x by itself.
1 = 2x
Finally, divide both sides by 2 so you only have one x
1/2 = x
This means that the answer is x = 1/2.
Answer:
Step-by-step explanation:
<u>Formulas used:</u>
- sin θ = sin (180 - θ)
- sin θ = opposite/hypotenuse
<u>Opposite:</u>
- y- coordinate of given point = 21
<u>Hypotenuse:</u>
- √x²+y² = √20²+21²= √841 = 29
<u>Then</u>
Correct choice is D
Answer:
7x+9
Step-by-step explanation:
combine like terms
plz brainliest!
The slope of this equation is 3.5