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lianna [129]
3 years ago
5

Aarti posted a comment on her blog. Each day the number of responses to her comment was 125% of the number she received on the p

revious day. If there were 64 responses the first day, how many were there on the fourth day?
Mathematics
1 answer:
kozerog [31]3 years ago
4 0

Answer:

156 were there on the fourth day.

Step-by-step explanation:

125% of the number she received on the previous day

This means that the previous day number is multiplied the 125%/100% = 1.25.

64 responses the first day

This means that the number of responses after x days is given by:

R(x) = 64(1.25)^x

How many were there on the fourth day?

This is R(4). So

R(4) = 64(1.25)^4 = 156

156 were there on the fourth day.

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