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In-s [12.5K]
3 years ago
14

A comic book is marked down 25% off of the original price. The original price was $40. what is the final price after the mark do

wn?​
Mathematics
2 answers:
Shalnov [3]3 years ago
6 0

Answer:

$30

Step-by-step explanation:

25% of 40 = 10

40-10 = 30

Harrizon [31]3 years ago
5 0
The answer is 10 because 25% of 40 equals ten
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ASAP! GIVING BRAINLIEST! Please read the question THEN answer correctly! No guessing.
Ilya [14]

Answer:

B. cost(time)

Step-by-step explanation:

In the information given above, you can eliminate choices "A," and "D," since they're just using the cost of a repair and the time the mechanic works. This leaves us with either "B," or "C." The correct answer is "B," because the cost of the repair depends on whatever is inside the parenthesis (the time).

3 0
3 years ago
Find a formula for a function that has vertical asymptotes x = 2 and x = 7 and horizontal asymptote y = 2.
Pie
Hello : 

 

hello : <span>
1 ) if : x</span>ـــــــ> ± ∞  <span>
 limf(x)   = b     ....(b</span>∈R)     so : y=b is the equation of the line horizontal asymptote.

<span>
2) if : x</span>ـــــــ> a ...(a∈R)<span>
 limf(x)   = ± ∞  
<span>so : x=a is the equation of the line vertical asymptote.</span></span>

<span><span>hint : in this exercice : a = 2 or a = 7  but : b=2</span></span>

6 0
3 years ago
Oil is pumped continuously from a well at a rate proportional to the amount of oil left in the well. Initially there were 3 mill
abruzzese [7]

Answer:

V' = -0.11552 *V\\= -0.11552(1.8)\\ \\=-0.20794 million per year

Step-by-step explanation:

Given that oil is pumped continuously from a well at a rate proportional to the amount of oil left in the well. Initially there were 3 million barrels of oil in the well; six years later 1,500,000 barrels remain.

i.e. if V stands for volume of oil, then

V' =kV\\dv/V= kdt\\ln V = kt+C\\V = Ae^{kt}

To find A and k

V(0) = A = 3 million

Hence V = 3e^{kt}

V(6) = 1.5

i.e. 1.5 = 3e^{6k}\\ln 1.5 =ln 3 +6k\\k = -0.11552

V(t) = 3e^{-0.11552t}

a) Using the above value of k , we have

V' = -0.11552 *V\\= -0.11552(1.8)\\ \\=-0.20794 million per year.

4 0
3 years ago
5x - 7y = 58<br> Y= -x + 2<br> (that’s an negative x)
Harrizon [31]
The answers are:

x = 13
y = -11
4 0
2 years ago
Read 2 more answers
How many solutions are there to the equation below?
bezimeni [28]

A square root cannot be equl to a negative.


answer: C. 0

6 0
2 years ago
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