Help me please... Mary took 7 hours to read 210 pages
the relationship between x, the number of hours she reads, and y, the number of pages read was 1x=30y.
How long will it take Mary to read 80 pages at the same reading rate? Show or explain how you got your answer.

2 2/3

Step-by-step explanation:

80/30=8/3=2 2/3

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl