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klemol [59]
3 years ago
5

Devon is trying to find the unit price on a 6-pack of drinks on sale for $2.99. his sister says that at that price,each drink wo

ykd cost just over $2.00 . is she correct,and how do you now? if she is not, how would devon's sister find the correct price?
Mathematics
1 answer:
tresset_1 [31]3 years ago
6 0
It is not true

6pack = 6 pieces ? 

6 pieces for $2.00 = $12   not $2.99

Devon should divide $2.99/6  ~~  $0.49


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A hemispherical tank is filled with water and has a diameter of 14 feet. If water
tigry1 [53]

Answer:

44,826.72\ \text{pounds}

Step-by-step explanation:

Given that,

The diameter of a hemispherical tank= 14 feet

Radius, r = 7 feet

water

Water weighs 62.4 pounds per cubic foot.

We need to find the total weight of the water in a full tank to the nearest pound.

The volume of the hemisphere is given by :

V=\dfrac{2}{3}\pi r^3\\\\V=\dfrac{2}{3}\pi \times (7)^3\\\\V=718.377\ \text{feet}^3

If water weighs 62.4 pounds per cubic foot, it means

V=718.377\times 62.4\\\\V=44,826.72\ \text{pounds}

So, the total weight of the water is 44,826.72\ \text{pounds}.

3 0
3 years ago
Graph a line with a slope of -3 that contains the point (4, -2)
Crank

Answer:

Step-by-step explanation:

Given that

Slope m=-3

A point (x, y)=(4,-2)

Equation of a line can generally be written as

y=mx+c

Where, m is the slope

And c is the intercept on y-axis

Since we are given m=-3

Then, y=mx+c becomes

y=-3x+c

To get c, let substitute the point given, i.e x=4 and y=-2

y=-3x+c

-2=-3(4)+c

-2=-12+c

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This is the required line equation

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3 years ago
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Allisa [31]

Answer:

33

Step-by-step explanation:

What you do is you take 57 and since it is a right triangle you take 90 and add them together. You will get 147. You will then minus this from 180 to get 33.

3 0
3 years ago
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malfutka [58]

The answer is 87.12

Just check it once

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3 years ago
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Ivanshal [37]

(1,-1) and (4,-6)

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x = (1 + 4)/2 = 5/2

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Midpoint (5/2, -7/2)


Answer

D.

(5/2, -7/2)

5 0
3 years ago
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