Janae was vacuuming the narrow hallway in her house. she went 5 feet forwards in the first 4 seconds, then went 3 feet backwards in the next 4 seconds. she continued to do this, forwards 5 feet in 4 seconds and backwards 3 feet in 4 seconds. if she continues in this way, how many seconds will it take her to reach the end of her hallway, which is 15 feet long? 1.

60 seconds

Step-by-step explanation:

Hi!

After she goes forward 5 feet (4 seconds), and the backwards 3 feet (another 4 seconds), the total distance forward she travelled is 2 feet. Then, she moved forward 2 feet in 8 seconds.

Then, as this is repeated, she moves forward 2 feet every 8 seconds. After 7 repetitions she travelled 14 feet, and 56 seconds elapsed. Then she goes forward 5 feet in 4 seconds, and she finaly reaches  the end of the hallway

(14 +5 > 15)

So, in 60 seconds she reached the end of the hallway.

answer: there are x+184 pages in olivia's book.

step-by-step explanation:

let the total number of pages in the book which olive has already read be x.

then if olive has 184 pages left to read, then the total number of pages are in olive's book= pages she has read+pages she has left to read

therefore, the total number of pages in olivia's book=

hence, there are x+184 pages in olivia's book.

nlgqer

step-by-step