Respuesta :

225/25=9

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

Answer:

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 [tex]\times[/tex] t.

Substitute the given values, to solve for t,

[tex]225 = 25 \times t[/tex]

Divide on both sides by 25 we get;

[tex]\frac{225}{25} = \frac{25t}{25}[/tex]

Simplify:

t= 9 minute.

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