Exam 7: Systems Of Equations and Inequalities

A small software company invests $24,425 to produce a software package that will sell for $70.Each unit can be produced for $45.84.How many units must be sold to break even? ​

Select the correct graph of the inequality. $y > 7 x - 6$

According to automobile association of a country, on March 27, 2009, the national average price per gallon of regular unleaded (87-octane) gasoline was $2.07, and the price of premium unleaded (90-octane) gasoline was $2.25.Write an objective function that models the cost of the blend of mid-grade unleaded gasoline (89-octane). ​

Select an inequality to describe the region.

Find the maximum value of the objective function and where it occurs, subject to the indicated constraints. ​ Objective function: ​ Z = 9x + 5y ​ Constraints: ​ 0 ≤ x ≤ 60 0 ≤ y ≤ 45 5x + 6y ≤ 420​ ​