Answer: The distance left after 20 days is 1350 miles
Explanation:
To calculate the distance, we use the formula:
![s=(d)/(t)](https://img.qammunity.org/2022/formulas/chemistry/college/a6z931ynoxeihnervs7z2pwqzqism34mae.png)
where,
s = speed of the bicycle = 90 miles/day
t = time taken = 20 days
d = distance travelled = ? miles
Putting values in above equation, we get:
![d=(90miles/day* 20days)=1800 miles](https://img.qammunity.org/2022/formulas/mathematics/college/dcpv7ekhz7osn4qd1x50psrtflr0suycyk.png)
Total distance to the destination = 3150 miles
Distance travalled in 20 days = 1800 miles
Distance left after 20 days = [3150 - 1800] = 1350 miles
Hence, the distance left after 20 days is 1350 miles