Reiko started a business selling home medical supplies. She spent $6500 to obtain her merchandise, and it costs her $550 per wee
k for general expenses. She earned $900 per week in sales. What is the minimum number of weeks it will take for Reiko to make a profit? Write an inequality to model the problem.
900x is greater than or equal to 550x+6500. In this equation, I used x to represent the number of weeks, 900x to represent her profits, and 550x+6500 to represent her costs. Then, since 19 is the lowest integer that we can plug into the equation to keep the inequality true, it is our answer, 19 weeks.
Hello : y= <span>x² - 4x + 1 calculate : x y = (x²-4x+4)-4+1 y+3 = (x-2)² x exist : if y+3 </span><span>≥ 0 y </span><span>≥ -3 the range is : </span><span>{y: y ≥ -3}</span>
