Answer: 5.5 miles per hour
Explanation:
Quincy rides his bicycle 1 mile in 4 minutes, and his sister Marissa runs 13,376 feet in 16 minutes.
We have to convert 13,376 feet to miles first. We should note that 1 mile = 5280 feet. Therefore 13,376 feet will be:
= 13376/5280
= 2.533 miles
We can then rewrite as:
Quincy rides his bicycle 1 mile in 4 minutes.
Marissa runs 2.533 miles in 16 minutes.
Since Quincy rides his bicycle 1 mile in 4 minutes, in an hour, he'll have rode the bicycle for:
= 60 minutes/ 4 minutes
= 15 miles in 1 hour
Since Marissa runs 2.533 miles in 16 minutes,.in an hour,. she'll have run for:
= 2.533 × 60/16
= 9.5 miles in 1 hour.
Note that: 60 minutes = 1 hour
In miles per hour, approximately how much faster is Quincy than Marissa?
To solve the question, we've talked find the difference between both and this will be:
= 15 miles - 9.5 miles
= 5.5 miles per hour