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myrzilka [38]
3 years ago
8

Nicole wants to buy a pair of jeans. The original cost of the jeans is $42.50 and he markup is 10 percent. How much will she hav

e to pay for the jeans ?
Mathematics
1 answer:
dangina [55]3 years ago
8 0

Answer:

She'll have to pay $46.75

Step-by-step explanation:

42.50 divided by 10% is 425 which equals $4.25. 42.50 + 4.25 = 46.75

42.50 + 10% = 46.75. So therefore you can check your answer twice and it will be the same answer.

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Students at Nelson middle school are planning a end of a year event of the 150 students in the school 100 would like an athletic
aleksley [76]

Answer:450

Step-by-step explanation: If you add 150 to 150 that will give you 300.If you add 300 to 100 that will give you 400.Finally if you add 400 to 50 that will give you 450.

                Your answer is: 450 students

               

4 0
3 years ago
The radius r(t)r(t)r, (, t, )of the base of a cylinder is increasing at a rate of 111 meter per hour and the height h(t)h(t)h, (
sp2606 [1]

Answer:

The volume is decreasing at a rate 20π cubic meter per hour.

Step-by-step explanation:

We are given the following in the question:

The radius is increasing at a rate 1 meter per hour.

\dfrac{dr}{dt} = 1\text{ meter per hour}                

The height is decreasing at a rate 4 meter per hour  

\dfrac{dh}{dt} = -4\text{ meter per hour}

At an instant time t,

r = 5 meter

h = 8 meters

Volume of cylinder =

\pi r^2 h

where r is the radius and h is the height of the cylinder.

Rate of change of volume is given by:

\dfrac{dV}{dt} = \dfrac{d(\pi r^2 h)}{dt}\\\\\dfrac{dV}{dt} = 2\pi rh\dfrac{dr}{dt} + \pi r^2\dfrac{dh}{dt}

Putting all the values we get,

\dfrac{dV}{dt} = 2\pi (5)(8)(1) + \pi (5)^2(-4)\\\\\dfrac{dV}{dt} = 80\pi - 100\pi = -20\pi \approx -62.8

Thus, the volume is decreasing at a rate 20π cubic meter per hour or 62.8 cubic meter per hour.      

3 0
3 years ago
Which of the following expressions is equal to <br> -3x^2 - 27 ?
Alborosie

Answer: D. -3x+9i)(x+3i) i hope this helped :)

3 0
3 years ago
A phone company tested the battery life of a random sample of 20 of its newest model phones. The dot plot shows the company's re
Over [174]

Answer:

14.4 hours

Step-by-step explanation:

14(2) + 14.1 + 14.2(3) + 14.3(3) + 14.4(2) + 14.5(3) + 14.6(3) + 14.7(2) + 14.9 / 20

= 288/20

= 14.4 hours

4 0
2 years ago
Read 2 more answers
If the perimeter of a regular pentagon can be expressed as 10s - 20, determine the length of each side.
MariettaO [177]
A regular pentagon has five equal sides, and the perimeter is all of the sides of one figure added together. So, to find what each individual side equals we have to divide the perimeter by five. 10s-20/5=2s-4.
Each side is 2s-4

3 0
3 years ago
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