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leonid [27]
3 years ago
12

Which of these equations correctly represents the following scenario: In her prime, 40 million people knew who Britney Spears wa

s, but that number has been decreasing by 10% each year. So, since 90% of people still recognize her each year, how many people still know who Britney is each year?
y = 40,000,000(0.9)x


y = 0.9(40,000,000)x


y = 40,000,000(0.01)x



y = 0.1x + 40,000,000


y = 0.01(40,000,000)x
Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
3 0

Answer:

Its the first option

40,000,000(0.9)x.

Step-by-step explanation:

90% recognise her each year so after 1 year so the number (N) is:

N = 40,000,000(0.90)^1 = 36,000,000 recognise her after 1 year.

N = 40,000,000(0.90)^2 = 32,400,000 recognise her after 2 yeas

- and so on.

After x years:

N = 40,000,000(0.90)^x.  

Note the x is a power and is best written as ^x.

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