A person on a moving sidewalk travel 21 feet on 7 seconds. The moving sidewalk has a length of 180 feet. How long with it take to move from one end of the sidewalk to the other

21 feet requires = 7 seconds

1 feet requires = 7/21 seconds

180 feet requires

= (7/21) * 180

= (1/3) * 180

=60 seconds

= 1 minute

Answer:In 5 seconds, an ostrich can run 105 meters

Step-by-step explanation: The number lines show that seconds of runing to distance can be shown with the ratio 3:63.

we are looking for a ratio that is equivalent 3:63. First let's find out how many meters an ostrich can run in 1 second by dividing both parts of the ratio by 3