Marlye posted a story on her blog. On the first day there were 80 responses and on the second day there were 180 responses. What percent is the increase, 100, of the original number of responses, 80?A . 55% B. 80% C.100% D. 125%

Respuesta :

80 * 80% = 64 So it's not A
80 * 55% = 44 so it's not B
80 * 100% = 80 so it's not C
80 * 125% = 100 so D is your answer

Hope this helps :)

On the second day, the responses to Marlye's blog increased by D. 125%.

Marlye notices that the number of responses to her blog is increasing because 80 responses came in on the first day which increased to 180 responses the next day.

The increase is:

= 180 - 80

= 100 responses

As a percent of the first day, this increase is:

= Increase / Number of responses in day 1 x 100%

= 100 / 80 x 100%

= 1.25 x 100%

= 125%

In conclusion, there was an increase of 125% in the responses to her blog.

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