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lana [24]
2 years ago
6

The price of a

Mathematics
2 answers:
Nat2105 [25]2 years ago
8 0

Answer:

$31.5

Step-by-step explanation:

The t-shirt is worth $42

$42 is 100% of the actual price or the real price of the t-shirt

25% off, means you subtract 25% of 42 off of the t-shirt, or you find 100% - 25% of the t-shirt

25% - 100% = 75%

75% of 42 = 0.75 * 42 = 31.5

The sale price of the t-shirt is $31.5

-Chetan K

RideAnS [48]2 years ago
7 0

Answer:

$31.5

Step-by-step explanation:

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Naddika [18.5K]

Answer:

cos(z) = .3846153846 and angle z = 67.38°

Step-by-step explanation:

Side UV is corresponding to side YX.  Side VW is corresponding to side YZ.  Side UW is corresponding to side XZ.

Starting with the first corresponding pair, we are told that side UV is 36, and that side YX is 3/5 of that.  So side YX is

\frac{3}{5}*36=21.6

We are next told that side VW is 39, so side YZ is

\frac{3}{5}*39=23.4

In order to find the cos of angle z, we need the adjacent side, which is side XZ.  Side XZ is 3/5 of side UW.  Right now we don't know the length of side UW, so we find it using Pythagorean's Theorem:

39^2-36^2=UW^2 and

UW^2=225 so

UW = 15

Now we can say that side XZ is

\frac{3}{5}*15=9

The cos of an angle is the side adjacent to the angle (9) over the hypotenuse of the triangle (23.4) so our ratio is:

cos(z)=\frac{9}{23.4}

which divides to

cos(z) = .3846153846

If you need the value of the angle, use the inverse cosine function on your calculator in degree mode to find that

angle z = 67.38°

3 0
3 years ago
PLEASE HELP QUICK!!!!!!1
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volume of pyramid = 1/3(area of the base)(height)

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What is the perimeter 2x+3 as length and x-6 as width

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Which of the following is in the solution set of y&lt; 8 x− 3? Select one: (7, 46) (7, 60) (10, 89) (9, 82)
navik [9.2K]

Answer:

  (7, 46)

Step-by-step explanation:

The offered answer choices have x-values of 7, 9, 10. The corresponding upper limit of y-value is ...

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Of the choices offered, only (7, 46) is in the solution set.

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