Final answer:
Maria types at a rate of 65 words per minute. Therefore, in 7 minutes, she can type 455 words.
Step-by-step explanation:
To find out how many words Maria can type in 7 minutes based on her rate of 195 words in 3 minutes, we use a unit rate conversion.
First, we determine the number of words Maria types in one minute. To do this, we divide the total number of words by the total number of minutes:
195 words ÷ 3 minutes = 65 words per minute
Now, we multiply the words per minute by the number of minutes we're interested in, which is 7 minutes:
65 words per minute × 7 minutes = 455 words
Maria will be able to type 455 words in 7 minutes at the rate of 65 words per minute.