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Mathematics 20 Online
OpenStudy (anonymous):

Write a matrix equation of the form AX = B to model the given application problem. Then solve the matrix equation using X = A-1B. You must state A-1 as part of your work. [Change A-1 to fractional form using the MATH key on your calculator] On Monday Bob's pizzeria sold 36 medium pizzas and 45 large pizzas for a total of $1475.19. On Tuesday Bob's pizzeria sold 50 medium pizzas and 61 large pizzas for a total of $2018.89. What does Bob charge for a medium pizza? for a large?

OpenStudy (anonymous):

write system equations based on given date first: 36*x + 45*y = 1475.19 50*x + 61*y = 2018.89 build matrix presentation: |36 35| |x| = |1465.19| |50 61| |y| |2018.19| solve it as requested

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