Answer:
$27.75
Step-by-step explanation:
Multiply $2.25 by 11 to get the answer
<span>Let x = first number
Let y = second number
x + y = 4
x * y = (-12)
Solve the first equation for x.
x = 4 - y
Now substitute this value of x into the second equation.
(4 - y) * y = (-12)
4y - y² = (-12)
y² - 4y - 12 = 0
(y + 2) * (y - 6) = 0
Now set both polynomials equal to zero
y + 2 = 0
y = -2
y - 6 = 0
y = 6
If you substituted these two values for y into either equation and solve for x, you would get the combination of 6 and -2
Hope I was able to help you! :)
</span>
Answer:

Step-by-step explanation:
Given inequality:

We need to solve the given inequality for solutions of
.
In order to solve for the inequality, we will isolate
in one side of the in-equation.
We have,

Subtracting both sides by 7.


Thus, the solution of the given inequality is all real numbers greater than 4.
The solution in interval form can be written as (4,∞).
The graph for the inequality is shown below.
Answer: A
Step-by-step explanation:
<h3>3856 books has to be sold so that the production costs will equal the money from sales</h3>
<em><u>Solution:</u></em>
Let "x" be the number of books
The production costs will include one-time fixed costs (such as editing) and variable costs (such as printing)
The one-time fixed costs will total 52,056
The variable costs will be 9.75 per book
Therefore,
Cost = 9.75x + 52056 ------ eqn 1
The publisher will sell the finished product to bookstores at a price of 23.25 per book
Therefore,
Revenue = 23.25x -------- eqn 2
<em><u>How many books must the publisher produce and sell so that the production costs will equal the money from sales?</u></em>
Revenue = cost

3856 books has to be sold so that the production costs will equal the money from sales