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Alfred is practicing typing. The first time he tested himself, he could type 45 words per minute. After practicing for a week, he could type 48 words per minute. After two weeks he could type 51 words per minute. Based on this pattern, predict how fast Alfred will be able to type after 4 weeks of practice. A. 61 words per minute   B. 57 words per minute   C. 54 words per minute   D. 51 words per minute

Respuesta :

adryane13
Thr pattern is 3 letters each week so I think the answer B) 57

Answer:

option B is correct.

Alfred will be able to type after 4 week of practice is, 57 words per minute

Step-by-step explanation:

As per the statement:

Alfred first time tested himself, he could type = 45 words per minute.

After the first week, he can type  48 words per minute.

After the second week, he can type 51 words per minute.

⇒ Constant ratio = [tex]+3 \text{words per week}[/tex]

or we can say that, Alfred is increasing his speed with 3 more words per week.

After the third week, he can type 54 words per minute.

then;

After the four week of practice, he can type 57 words per minute.


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