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  3. 1. in 2003, gross sales at mcdonald’s and burger

1. In 2003, gross sales at McDonald’s and Burger King totaled $60.9 billion. McDonald’s sales exceeded...

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Basic Math

1. In 2003, gross sales at McDonald’s and Burger King totaled$60.9 billion. McDonald’s sales exceeded Burger King’s sales by$22.1 billion.

(a) Write a system of equations whose solution gives theindividual sales of each company in billions of dollars.

(b) Solve the system of equations. (c) Is your system consistentor inconsistent? If it is consistent, state whether the equationsare dependent or independent.

2. Solve the system symbolically 3x-2y=5 x+5y=13

3. Answer the following questions

a. What is a matrix?

b. What is a matrix Dimension

c. What is a matrix element?

Answer & Explanation Solved by verified expert
3.7 Ratings (343 Votes)
1 a Let the gross sales at McDonalds and Burger King in 2003 be x billion and y billion respectively Then xy 6091 and x y2212 bOn substituting x y221 in the 1st equation we get    See Answer
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