7.

Question

Alfred is practicing typing. The first time he tested himself, he could type 23 words per minute. After practicing for a week, he could type 26 words per minute. After two weeks he could type 29 words per minute. Based on this pattern, predict how fast Alfred will be able to type after four weeks of practice.

35 words per minute

29 words per minute

32 words per minute

39 words per minute

Answer 1

To predict how fast Alfred will be able to type after four weeks of practice, we need to identify the pattern in the increase of his typing speed.

The given data is:
- Initial typing speed: 23 words per minute
- After one week: 26 words per minute
- After two weeks: 29 words per minute

We notice that each week, Alfred's typing speed increases by 3 words per minute (26 - 23 = 3 and 29 - 26 = 3).

To find his typing speed after three weeks and four weeks, we can continue to add 3 words per minute for each additional week of practice:
- After three weeks: 29 words per minute + 3 words per minute = 32 words per minute
- After four weeks: 32 words per minute + 3 words per minute = 35 words per minute

Therefore, based on the pattern, Alfred will be able to type **35 words per minute** after four weeks of practice.