Margaret is reading a book. the number of pages she has left to read is 276−35d276−35d , where d represents the number of days she has been reading. what does each part of the expression represent?

35=
276=
35 d=

(options for answers: the number of pages read during one day, the total number of pages in the book, the number of pages she has read during d days, the number of pages she has read during 1 week)

i believe these are the answers but, i am not sure!

35= the number of pages read during 1 day
276= the total number of pages in the book
35d= the number of pages she has read during d days, the number of pages she has read during 1 week

!

Let

P-------> the number of pages Margaret has left to read

d-------> the number of days Margaret has been reading

we know that

This is a linear equation

where

------> is the slope of the equation

represent

------> the total number of pages in the book

------> the number of pages she has read during d days

the graph in the attached figure

step-by-step explanation:

the first 5 right here the next 5 i will upload as separate question

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m