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marishachu [46]

3 years ago

10

Hi please help me find the answer to this questions

1 answer:

maxonik [38]3 years ago

5 0

Answer:

what is the question

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Two stores sell the same television for the same original price. Store A advertises that the television is on sale for 30% off t

BARSIC [14]

"0.3p = p _ 250" is the one equation among the following choices given in the question that models the situation given in the question. The correct option among all the options that are given in the question is the first option or option "A". I hope that this is the answer that you were looking for and the answer has actually come to your help.

4 0

3 years ago

A soup can in the shape of a right circular cylinder is to be made from two materials. The material for the side of the can cost

Advocard [28]

Answer:

Radius = 1.12 inches and Height = 4.06 inches

Step-by-step explanation:

A soup can is in the shape of a right circular cylinder.

Let the radius of the can is 'r' and height of the can is 'h'.

It has been given that the can is made up of two materials.

Material used for side of the can costs $0.015 and material used for the lids costs $0.027.

Surface area of the can is represented by

S = 2πr² + 2πrh ( surface area of the lids + surface are of the curved surface)

Now the function that represents the cost to construct the can will be

C = 2πr²(0.027) + 2πrh(0.015)

C = 0.054πr² + 0.03πrh ---------(1)

Volume of the can = Volume of a cylinder = πr²h

16 = πr²h

$h=\frac{16}{\pi r^{2}}$ -------(2)

Now we place the value of h in the equation (1) from equation (2)

$C=0.054\pi r^{2}+0.03\pi r(\frac{16}{\pi r^{2}})$

$C=0.054\pi r^{2}+0.03(\frac{16}{r})$

$C=0.054\pi r^{2}+(\frac{0.48}{r})$

Now we will take the derivative of the cost C with respect to r to get the value of r to get the value to construct the can.

$C'=0.108\pi r-(\frac{0.48}{r^{2} })$

Now for C' = 0

$0.108\pi r-(\frac{0.48}{r^{2} })=0$

$0.108\pi r=(\frac{0.48}{r^{2} })$

$r^{3}=\frac{0.48}{0.108\pi }$

r³ = 1.415

r = 1.12 inch

and h = $\frac{16}{\pi (1.12)^{2}}$

h = 4.06 inches

Let's check the whether the cost is minimum or maximum.

We take the second derivative of the function.

$C"=0.108+\frac{0.48}{r^{3}}$ which is positive which represents that for r = 1.12 inch cost to construct the can will be minimum.

Therefore, to minimize the cost of the can dimensions of the can should be

Radius = 1.12 inches and Height = 4.06 inches

5 0

3 years ago

There is 40% decreased in price on a sale it is further decreased by 5%,find the total decreased percentage.

VladimirAG [237]

Hope it helps

Answer:40%+5%=45%

3 0

3 years ago

Can someone help me with this math qt

FinnZ [79.3K]

Answer: 15

first find 1% of 48

it will be 48/100 = 0.48

now to find 29% multiply 1% with 29

it will 29*(.48) = 13.92

most close to 14. Also Close to 15.

That's all easiest way to solve such question.

3 0

3 years ago

Find the solution <br> Y = -3x - 5

igomit [66]

Answer:
-5/3

Explanation:

5 0

2 years ago