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3 years ago

11

john spent $201 for shirts and pants for work. shirt cost $27 dollars and pants cost $22. if he bought a total of 8 articles of

clothing, then how many of each kind did he buy?

2 answers:

skelet666 [1.2K]3 years ago

4 0

So you subtract, 27-22. 27-22 is equal to 5. So, John will buy 5 kinds of T- Shirts.

Orlov [11]3 years ago

4 0

5 shirts 3 pants. set up equasion 201=27x +22y then either guess and check or just solve the equasion

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2 years ago

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Find all solutions of each equation on the interval 0 ≤ x < 2π.

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How are tangents and secants related to sines and cosines?

$\displaystyle \tan{x} = \frac{\sin{x}}{\cos{x}}$ .

$\displaystyle \sec{x} = \frac{1}{\cos{x}}$ .

Sticking to either cosine or sine might help simplify the calculation. By the Pythagorean Theorem, $\sin^{2}{x} = 1 - \cos^{2}{x}$ . Therefore, for the square of tangents,

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This equation will thus become:

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To simplify the calculations, replace all $\cos^{2}{x}$ with another variable. For example, let $u = \cos^{2}{x}$ . Keep in mind that $0 \le \cos^{2}{x} \le 1 \implies 0 \le u \le 1$ .

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