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blondinia [14]
3 years ago
13

Caleb bought groceries and paid 1.60 in sales tax. The sales tax rate is 2.5%

Mathematics
1 answer:
Anton [14]3 years ago
5 0

Answer:

$3.16

Step-by-step explanation:

Divide

add

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Volume and surface area are often compared by manufacturers in order to maximize how much of something can go inside of a packag
notka56 [123]
We have no dimensions to work with. I'll pick some and try and comply with the conditions of the problem. 

Suppose you have an object that is 14 by 22 by 27 cm. These three numbers have no common factor so they cannot be reduced any further, which is helpful for this problem.

Find the Volume
Volume

l = 27 cm
w = 14 cm
h = 22 cm

V = 27 *14 * 22
V = 8316 cm^3

Find the surface area
SA = 2*l*w + 2*l*h  + 2*w*h
SA = 2*27*14  +  2*27*22   +  2*14*22
SA = 756 + 1188 + 616
SA = 2558

Just looking at these numbers The surface area is about 1/3 of the volume. I don't think this is always true.


 \frac{SA}{V} =  \frac{2*L*W  + 2*L*H + 2*W*H}{L*W*H} 

Another way to do this is to consider a cube which might give you a more useful result. 

s = L = W = H all three dimensions are equal in a cube.
The volume of a cube is s*s*s = s^3
The surface area of a cube is 2*s*s + 2*s*s + 2s*s = 6s^2

\frac{SA_cube}{V_cube} =  \frac{6s*s}{s*s*s}
\frac{SA}{V} =  \frac{6}{s}

That means whatever the side length, the Surface Area to volume = 6/the side length which is kind of an interesting result.


4 0
3 years ago
It takes about me 25 minutes to make out a test for a mathematics class how long will it take to make out test for all five of m
ira [324]

Answer:

125 minutes total.

Step-by-step explanation:

You do:

25 times 5

= 125 minutes.

6 0
3 years ago
Read 2 more answers
what are some tv shows a 12 year old watch on Netflix (im a mature 12 yr old and can watch almost anything) ​
Dmitriy789 [7]

Answer:

Umbrella Academy. Netflix. ...

The Baby-Sitters Club. Netflix. ...

Malibu Rescue. Netflix. ...

Alexa and Katie. Netflix. ...

Fuller House. Netflix. ...

Ashley Garcia, Genius in Love. Netflix. ...

The Letter for the King. Netflix. ...

Moesha. Netflix.

Booksmart (2019) Film. ...

The Half of It (2020) Director Alice Wu. ...

Mean Girls (2004) Film. ...

To All the Boys I've Loved Before (2018) Director Susan Johnson. ...

Handsome Devil (2017) Film. ...

Clueless (1995) Film. ...

The Edge Of Seventeen (2016) Film. ...

The Mitchells Vs The Machines (2021)

6 0
2 years ago
A pentagon can be divided into five congruent triangles. The function t=5 tan theta models the height of each triangle. What is
pentagon [3]
We assume that the dimension 5 has units of feet.

The area of each triangle will be
  A = (1/2)bh
where b=2×(5 ft), h=(5 ft)tan(54°)
Then
  A = (1/2)(2×5 ft)(5 ft)(tan(54°)
  A = 25×tan(54°) ft²

There are 5 such triangles making up this pentagon, so the total area is
  total area = 5×25×tan(54°) ft² ≈ 172 ft²

6 0
3 years ago
Is y=2x+3 a proportional relationship
lisabon 2012 [21]

answer:

no, it does not represent a proportional relationship because it has a y-intercept therefore it won’t go through the origin.

4 0
2 years ago
Read 2 more answers
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