3 years ago

Solve each problem. Explain or show your reasoning. a. What is 25% of 160?

Mathematics

1 answer:

stiks02 [169]3 years ago

3 0

Answer:

Step-by-step explanation:

Hi there,

Before solving this problem, it is useful to know that 25% is equivalent to 1/4 or 0.25. There are two ways to solve this problem:

1.) Multiply 0.25 by 160

2.) Divide 160 by 4.

Either way, the answer is still 40. Hope this answer was useful. Cheers.

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I guess you mean $\cos a=-\dfrac25$ . Since $a$ is in quadrant III, we expect $\sin a$ . Then

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Now,

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and

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Answer:

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