A person who initially weighs 250 pounds loses 2 pounds per week. Let t represent the number of weeks and let W represent the person's weight, in pounds: W = − 2 t + 250
a. What is the person's weight after twelve weeks?
b. After how many weeks will the person weigh 234 pounds?

To solve this problem, simply plug in the numbers for the variables it told you they correspond to. 12 is the number of weeks, and t represents the number of weeks, so we can plug 12 in for t.

[tex]W=-2(12)+250[/tex]

Simplify and you'll have your answer.

[tex]W=-24+250\\W=226[/tex]

For part B, 234 is the amount of pounds, and W represents the weight in pounds, so we can plug 234 in for W.

[tex]234=-2t+250\\-16=-2t\\8=t[/tex]

A person who initially weighs 250 pounds loses 2 pounds per week. Let t represent the number of weeks and let W represent the person's weight, in pounds: W = − 2 t + 250 a. What is the person's weight after twelve weeks? b. After how many weeks will the person weigh 234 pounds?

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A person who initially weighs 250 pounds loses 2 pounds per week. Let t represent the number of weeks and let W represent the person's weight, in pounds: W = − 2 t + 250
a. What is the person's weight after twelve weeks?
b. After how many weeks will the person weigh 234 pounds?