Answer:
<em>a) Since the income is more than the cost, she makes a profit.</em>
<em>b) To make profits, she must sell at least 17 necklaces</em>
Step-by-step explanation:
<u>Inequalities</u>
The costs of selling jewelry at a fair are $135 to rent a booth and $4 for each necklace. The cost function is:
C(n) = 135 + 4n
Where n is the number of necklaces she sells at the fair. She sells each necklace at $12 each, thus the income function is:
R(n) = 12n
a) If she sells n=17 necklaces, it will cost:
C(17) = 135 + 4*17 = 203
And the income is:
R(17) = 12*17= 204
Since the income is more than the cost, she makes a profit.
b) To make a profit R(n) > C(n), thus:
12n > 135 + 4n
Subtracting 4n:
8n > 135
n > 135/8
n > 16.875
Thus, to make profits, she must sell at least 17 necklaces
Here's the equation:
0 = 60 x gallons - 420
In order to get how many gallons you need to make 0$ in profit, you need to:
1) Divide 420<span>÷60
2) 420</span><span>÷60=7
3) Plug it in: 0 = 60 x 7 - 420
4) Does it work? Yes.
5) Therefore, the answer is 7.</span>
Hello!
Answer: ⇒⇒⇒⇒⇒-105
Explanation
↓↓↓↓↓↓↓↓↓↓↓↓↓
First, remove parenthesis.
Then, multiply by the numbers.
Hope this helps!
Thank you for posting your question at here on Brainly.
Have a great day!
-Charlie
The range would be [-3, infinity)
-3 (inclusive) to infinity (non-inclusive)
Answer:
-32 and -33
Step-by-step explanation:
x + (x + 1) = -65
2x +1 = -65
2x = -66
x = -33. So (x + 1) = -33 + 1 = -32
-33 + -32 = -65
