Write a system of equations to describe the situation below, solve using elimination, and fill in the blanks.For a project in statistics class, a pair of students decided to invest in two companies, one that produces software and one that does biotechnology research. Jill purchased 82 shares in the software company and 82 shares in the biotech firm, which cost a total of $5,822. At the same time, Kate invested a total of $5,978 in 95 shares in the software company and 82 shares in the biotech firm. How much did each share cost?Each share in the software company cost $_, and each share in the biotech firm cost $_.
Q. Write a system of equations to describe the situation below, solve using elimination, and fill in the blanks.For a project in statistics class, a pair of students decided to invest in two companies, one that produces software and one that does biotechnology research. Jill purchased 82 shares in the software company and 82 shares in the biotech firm, which cost a total of $5,822. At the same time, Kate invested a total of $5,978 in 95 shares in the software company and 82 shares in the biotech firm. How much did each share cost?Each share in the software company cost $_, and each share in the biotech firm cost $_.
Equations setup: Let's denote the cost of one share in the software company as S dollars and the cost of one share in the biotech firm as B dollars. We can write two equations based on the information given:1. For Jill's investment: 82S+82B=58222. For Kate's investment: 95S+82B=5978
Elimination method: To solve this system using elimination, we need to eliminate one of the variables. We can do this by multiplying the first equation by −1 to get the coefficients of B to be opposites:−1×(82S+82B)=−1×5822This gives us: −82S−82B=−5822
Solving for S: Now we add this new equation to the second equation to eliminate B:(−82S−82B)+(95S+82B)=(−5822)+5978This simplifies to: 13S=156
Substitute S into equation: We divide both sides of the equation by 13 to solve for S:1313S=13156S=12
Calculate value of B: Now that we have the value of S, we can substitute it back into one of the original equations to solve for B. We'll use the first equation:82S+82B=582282(12)+82B=5822
Final solution for B: We calculate the value of 82×12 and subtract it from 5822 to solve for B:984+82B=582282B=5822−98482B=4838
Final solution for B: We calculate the value of 82×12 and subtract it from 5822 to solve for B:984+82B=582282B=5822−98482B=4838Finally, we divide both sides of the equation by 82 to find the value of B:8282B=824838B=59
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