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Sveta_85 [38]
3 years ago
14

6 pairs of sock for $6.99. 10 pairs of socks for 11.99. which is the better buy

Mathematics
2 answers:
GenaCL600 [577]3 years ago
4 0

Answer:

10 pairs of socks for $11.99

Step-by-step explanation:

6.99/6 = 1.165

1.99/10 = 0.199

0.199 < 1.165

oksano4ka [1.4K]3 years ago
4 0

Answer:

6 pairs of socks for 6.99.

Step-by-step explanation:

Because 11.99 is almost $12 and 6.99 is almost $7, so 6 for 7 is better than 10 for 12. Also if you divide 11.99 by 10 you get 1.199 and if you divide 6.99 by 6 you get 1.165.

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(2^8 * 3^-5 * 6^0)^-2 * (3^-2/ 2^3) ^4 * 2^28
11Alexandr11 [23.1K]

\left(2^8\cdot \:3^{-5}\cdot \:1\right)^{-2}=\left(1\cdot \frac{256}{243}\right)^{-2}=\left(\frac{256}{243}\right)^{-2}=\left(\frac{243}{256}\right)^2

\left(2^8\cdot \:3^{-5}\cdot \:6^0\right)^{-2}\left(\frac{3^{-2}}{2^3}\right)^4\cdot \:2^{28}

=2^{28}\left(\frac{3^{-2}}{2^3}\right)^4\left(3^{-5}\cdot \:2^8\cdot \:1\right)^{-2}

Consider

\left(2^8\cdot \:3^{-5}\cdot \:1\right)^{-2}=\left(1\cdot \frac{256}{243}\right)^{-2}=\left(\frac{243}{256}\right)^2=\frac{243^2}{256^2}

=2^{28}\left(\frac{3^{-2}}{2^3}\right)^4\frac{243^2}{256^2}

=2^{28}\cdot \frac{1}{2^{12}\cdot \:3^8}\cdot \frac{243^2}{256^2}

=\frac{243^2\cdot \:1\cdot \:2^{28}}{256^2\cdot \:3^8\cdot \:2^{12}}

=\frac{2^{16}\cdot \:243^2}{3^8\cdot \:256^2}

=\frac{2^{16}\cdot \:3^{10}}{2^{16}\cdot \:3^8}

=3^2

=9

6 0
2 years ago
What to the power of 2 equals 64?
natta225 [31]
The answer is 8. 8*8=64
3 0
3 years ago
Let f(x)= 2x2−3x+8 What is the value of f(-4)?
Ne4ueva [31]

Answer:

52

Step-by-step explanation:

So we have the function:

f(x)=2x^2-3x+8\\

And we want to find f(-4).

To find f(-4), substitute -4 for x. Thus:

f(-4)=2(-4)^2-3(-4)+8

Square:

f(-4)=2(16)-3(-4)+8

Multiply:

f(-4)=32+12+8

Add:

f(-4)=44+8

Add:

f(-4)=52

And we're done!

Our answer is 52.

5 0
3 years ago
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If the volume of the solid below is 490 cubic inches, what is the height of the solid?
aleksklad [387]

Answer:The percent change in volume between cylinders A and B is 50%.

Step-by-step explanation:

7 0
3 years ago
The formula v= u+ atdescribes connections between u: starting velocity a: acceleration t: time v: final velocity a)In a particul
Bess [88]

Answer:

  • 49 = 0 +9.8t
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Step-by-step explanation:

It usually works to follow directions.

a) Substitute the numbers into the formula:

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b) Solve the equation:

  49/9.8 = t = 5 . . . . . divide by the coefficient of t

6 0
2 years ago
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