Question

Stephen is tracking how many words per minute (wpm) he reads for reading class. He is now at

Answer 1

Answer: 8 weeks

Step-by-step explanation:

Given : Stephen is tracking how many words per minute (wpm) he reads for reading class.

Equation: $w = 112 + 8t$, where t = time (weeks)  and w = wpm .

Then, the equation to find number of weeks (w), it will take Stephen to reach  

171 wpm is given by :-

$171=112+8t\\\\\Rightarrow\ 8t=171-112\\\\\Rightarrow\ 8t=59\\\\\Rightarrow\ t=\dfrac{59}{8}=7.375\approx8$

Hence it will take about 8 weeks Stephen  to reach  171 wpm.