Question: Set up appropriate systems of two linear equations in two unknowns and then solve the systems by determinants. All numbers are accurate to at least

Set up appropriate systems of two linear equations in two unknowns and then solve the systems by determinants. All numbers are accurate to at least two significant digits.

The ratio of males to females on a bus was 5/7. Then two females and one male boarded, and the ratio was 7/10. How many males and females were on the bus before the last three passengers boarded?

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Lets denote the number of males and females on the bus before the last three passengers boarded as x and y respectively From the problem statement we ... View full answer

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