Step-by-step explanation:
-2.21z + 1.82a - 3.38
I think this is the answer
0.3% is the answer because the decimal is over one meaning the percent is over 100
Answer: 29 1/4
Step-by-step explanation:
Multiply and simplify to 29 1/4
Answer:
70
Step-by-step explanation:
i added 30% and 40
Where <em>x </em>is the number of books sold, <em>i </em>is income, and <em>c </em>is cost:
<em>c = 4x + 3500 </em> ($4 per book plus the 3500 flat marketing fee)
<em>i = 15x </em>($15 per book)
You are looking for the point where these intersect: the intersection is where the income is equal to the cost, and at any point after that the income is greater than the cost. So, set the equations equal to each other:
<em>4x + 3500 = 15x </em>
subtract 4x from both sides
<em>3500 = 11x</em>
divide both sides by 11
<em>x = 318.181818</em>
So, you would have to sell a minimum of 319 books in order to make a profit.
