Question

A drawbridge rises at a rate of 3 2/3 feet per minute. The drawbridge rises to a height of 50 feet. How long does it take the draw bridge to completely rise?

Question 5 options:

13 7/11 feet


183 2/3 feet


13 7/11 minutes


183 2/3 minutes

Answer 1

183 2/3

Explanation:

3 2/3 feet minute * 50 feet

11/3 * 50 = 550/3 = 183 2/3

Answer 2

Answer: Third option.

Explanation:

You know that the drawbridge rises at a rate of
`3\ (2)/(3)` feet per minute. This means that the drawbridge rises
`3\ (2)/(3)` in a minutes.

Convert from mixed fraction to decimal number:

`3\ (2)/(3)\ ft=(3+0.66)\ ft=3.6\ ft`

Since the drawbridge rises to a height of 50 feet, you need to apply this procedure in order to find the time the drawbridge takes to completely rise:

`time=((1\ min)(50\ ft))/(3.66\ ft)=13.6\ min` or
`13\ (7)/(11)\ min`