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?

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

Step-by-step 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,

Divide on both sides by 25 we get;

Simplify:

t= 9 minute.

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

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step-by-step explanation: