Andre and elena are reading the same book over the summer. andre says he read 1/5 of the book. elena says she read 20 more pages then andre. if elena is on page 55, how msny pages are in the book?

 The answer is 175 pages.

Step-by-step explanation:  Given that Andre and Elena are reading a book in summer time. Andre read one-fifth of the book and Elena read 20 pages more than Andre. We are to find the total number of pages in the book if Elena is on page 55.

Let, 'x' be the total number of pages in the book. Then, according to the given information, we have

Thus, there are 175 pages in the book that Andre and Elena are reading.

828. all there is to it!

here, if you ever need with rounding (or other forms of arithmetic/math) again, use this:

thats the rounding one, but if you just click the top left, it shows you all the calculators you may need!

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have