Question

Yesterday, Selma read 75 pages of her book. If she reads at a pace of 2 pages per minute today, which table shows only viable solutions for the total number of pages she has read, y, after x minutes have elapsed?

Answer 1

y will be 75

             AND'

x will be 150

Answer 2

Her reading pace is 2 pages per min:

2 pages = 1 min

1 page = 1 ÷ 2 = 0.5 min

x pages = 0.5x mins

Find the total number of pages she has read in x min:

Number of pages read = y

y = 75 + 0.5x

Answer: y = 75 + 0.5x