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swat32
3 years ago
6

Arati 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:
zvonat [6]3 years ago
5 0

If the next number is 125% of the previous number, that means that the previous number is increasing by 25% each time.

The multiplier for increasing by 25% is:

(100 + 25) ÷ 100 = 1.25

So on day one, there are 64 responses. That means on day two, there will be:

---> 64 x 1.25 = 80 responses

On day 3, there will be:

---> 80 x 1.25 = 100 responses

Finally, on <u>day 4</u>, there will be:

---> 100 x 1.25 = 125 responses

A quicker way of getting this would be to do:

64 x 1.25³      since you are multiplying by 1.25  3 times

--------------------------------------------------

Answer:

125 responses

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