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?
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 \(\times\) t.
Substitute the given values, to solve for t,
\(225 = 25 \times t\)
Divide on both sides by 25 we get;
\(\frac{225}{25} = \frac{25t}{25}\)
Simplify:
t= 9 minute.
Therefore, it would take him to read a 225 word article is, 9 minute.