Express each of the following percentages as a fraction.28% 158%
1 answer:
Answer:
28% = 7/25 and 158% = 79/50
Step-by-step explanation:
To convert a percent into a fraction, you have to put the value of the percent over 100.
For 28%: 28/100
28 and 100 are both divisible by 4, so the fraction reduces to 7/25.
For 158%: 158/100
158 and 100 are both divisible by 2, so the fraction reduces to 79/50. If you teacher doesn't want you do use improper fractions, then 79/50 can further be reduced and becomes .
Hope this helped!
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Answer: 0.73 + πk, 0.28 + πk
<u>Explanation:</u>
cos (2x - 1) = 0.9
cos⁻¹[cos (2x - 1)] = cos⁻¹ 0.9
2x - 1 = +/- 0.45
2x = +/- 0.45 + 1
x =
x = , x =
x = 0.73, 0.28
For ALL Solutions:
x = 0.73 + πk and x = 0.28 + πk