Alvin weighed 200 pounds at the beginning of the semester. After eating healthy foods and exercising regularly for ten weeks, he lost 3 pounds per week. Which expression would he use to represent his current weight at any time after x amount of weeks if he continues to lose 3 pounds per week?
200+3x
200x-3
200-3x
200x+3
200-3x
To find the expression that represents Alvin's current weight after x amount of weeks, we need to understand that Alvin is losing 3 pounds per week.
Since Alvin weighed 200 pounds at the beginning of the semester and he loses 3 pounds per week, his weight after 1 week would be 200 - 3 = 197 pounds. After 2 weeks, his weight would be 197 - 3 = 194 pounds.
From this pattern, we can see that his weight decreases by 3 pounds for each week that passes.
Therefore, the expression that represents Alvin's current weight after x amount of weeks would be 200 - 3x.
So, the correct expression is 200 - 3x.
The expression that Alvin would use to represent his current weight at any time after x amount of weeks if he continues to lose 3 pounds per week is:
200 - 3x