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vodka [1.7K]
3 years ago
5

In a department store, a $40 dress is marked, “Save 25%.” What is the sale price of the dress?

Mathematics
1 answer:
gogolik [260]3 years ago
5 0
It is $30. 25% is $10. $40-$10 is $30
You might be interested in
Which of the following statements are true?
Fantom [35]

Answer:

option A and B are correct.

Step-by-step explanation:

Given: p(t) = \frac{64}{1 + 11e^{-.08t} }

Option A: \lim_{t \to \infty} \frac{64}{1 + 11e^{-.08(\infty)} }  = \frac{64}{1 + 0}  = 64

Option A is true,

Option B: P(0) = \frac{64}{1 + 11}  = 5.33

Option B is also true.

Option C:

P(t + 1) = \frac{64}{1 + 11e^{-.08(t + 1)} }  = \frac{64}{1 + 10.15e^{-.08t} } \\1.08 · P(t) = \frac{64 · 1.08 }{1 + 11e^{-.08t} }   = \frac{69.12}{1 + 11e^{-.08t} }

P(t + 1) ≠ 1.08 · P(t)

Option C is incorrect.

Option D:  It is also incorrect, because according to option 2 earth's population will not grow exponentially without Bound.

8 0
3 years ago
the circumference of a circle is 16π. show how you can use this information to find the same circles area.
KiRa [710]
I hope this helps you



Circumference =2pi.r



16.pi=2.pi.r


r=8



Area=pi.r^2



Area =pi.8^2



Area =64pi
7 0
3 years ago
Can u please help me
Alchen [17]

Answer:

that answer u put is correct and r u in K12 to lol

8 0
3 years ago
sebuah kantong berisi 20 kelereng merah dan 15 kelereng putih.toni memiliki 3 kantong yang berisi kelereng dengan jumlah yang sa
oee [108]

Answer:

60

Step-by-step explanation:

The computation of the rest of the marbles is given below:

Since there is 20 red and 15 white marbles

Also the 3 bags contains same marbles

So if he gives 45 marbles, so the remaining would be

= (20 + 15) × 3 - 45

= 35 × 3 - 45

= 105 - 45

= 60

5 0
3 years ago
We are interested in the dimensions of a certain rectangle. this rectangle has length twice the side of the square and width thr
Mila [183]
Area of square = s^2
Area of Rectangle = lw
l = 2s

w+3 = s
solve for w, w=s-3
Now we have l and w.
Plug both into area of rectangle formula so: (2s)(s-3)
Since both areas are equal set both equations equal to each other:
(2s)(s-3)=s^2
Now simplify
2s^2-6s=s^2
s^2-6s=0, Solve for s.
Factor polynomial. s(s-6)=0 , s can be equal to 0 or 6. HOWEVER, you cannot have a side length of 0 therefore the side length has to be 6.
Now plug in s for the length formula for the rectangle:
l = 2s so... l = 2(6) so length of rectangle = 12.
Now plug in s for the width formula for the rectangle:
w+3=s so... w+3=6 so width of rectangle = 3.
Now the dimensions of the rectangle are 12 by 3. 12 being length and 3 width.
To CHECK:
Find area of rectangle:
A=lw so A=3 times 12 so A=36
Find area of square:
We know the side is equal to 6 so
A=s^2 so 6^2 = 36
The areas are equal that verifies the answer of 12 by 3.
8 0
3 years ago
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