Question

Derek reads at a rate of 25 words per minute. If he reads constantly until he is finished, how long would it take him to read a 225 word article?

Answer 1

225/25=9

9 minutes to read a 225 word article at the rate of 25 words per minute.

Answer 2

9 minutes would it take him to read a 225 word article.

Explanation:

Unit rate defined as the are rates are expressed as a quantity of 1, such as 3 feet per second or 6 miles per hour, they are called unit rates.

As per the statement: Derek reads at a rate of 25 words per minute.

⇒ unit rate per minute = 25 words.

To find how long would it take him to read a 225 word article.

Let the time be t would it take him to read a 225 word article.

Total number of words = unit rate per minute
`*` t.

Substitute the given values, to solve for t,

`225 = 25 * t`

Divide on both sides by 25 we get;

`(225)/(25) = (25t)/(25)`

Simplify:

t= 9 minute.

Therefore, it would take him to read a 225 word article is, 9 minute.