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13.) In 1990, a radio costs $25. Now, the radio costs $5. What is the percent of change?
Question
13.) In 1990, a radio costs $25. Now,
the radio costs $5. What is the
percent of change?
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Mathematics
3 years
2021-09-03T15:14:08+00:00
2021-09-03T15:14:08+00:00 1 Answers
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Answers ( )
Answer:
Step-by-step explanation:
80% of 25 = 5
because 10% of 25 = 2.5
and then 10 x 8 = 80
so 2.5 x 8 = 20
25 – 20 = 5
therefore, the percentage change is 80%
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