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Test your skills in solving systems of equations without a calculator through various scenarios. Includes matrices and applications. Prepare for the test by practicing different methods such as Cramer's Rule and matrix operations.
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Chapter 7 Review! Systems of Equations
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Solve 3x3 Systems Solve 2x2 Systems Matrices Applications 100 100 100 100 200 200 200 200 300 300 300 300 400 400 400 400 TEST INFO!
Solve the system without a calculator A 100
(2, 1) A 100
Solve the system without a calculator A 200
No solution A 200
Solve the system without a calculator B 100
(-3, 0, -6) B 100
Solve the system without a calculator B 200
(2, 6, 1) B 200
Solve the system without a calculator B 300
(-3, 6, 5) B 300
Solve the system without a calculator B 400
Infinitely Many Solutions (-a – 5, ½a + 4, a) B 400
Perform the indicated operation without a calculator. C 200 C 200
C 300 C 300
Wilbur and Jimmy each improved their yards by planting hostas and geraniums. They bought their supplies from the same store. Wilbur spent $75 on 5 hostas and 10 geraniums. Jimmy spent $120 on 12 hostas and 14 geraniums. Find the cost of one hosta and the cost of one geranium. D 100
The University of Georgia and Florida State University scored a total of 39 points during the 2003 Sugar Bowl. The points came from a total of 11 different scoring plays, which were a combination of touchdowns, extra – point kicks, and field goals, worth 6, 1, and 3 points respectively. The same numbers of touchdowns and field goals were scored. How many touchdowns, extra – point kicks, and field goals were scored during the game? (Source: espn.com) D 300
There were 4 touchdowns, 3 extra – point kicks, and 4 field goals during the game. D 300
A small corporation borrowed $500,000 to build a new office building. Some of the money was borrowed at 9%, some at 10%, and some at 12%. Use a system of equations to determine how much was borrowed at each rate if the annual interest was $52,000 and the amount borrowed at 10% was 2.5 times the amount borrowed at 9%. D 400
The small corporation borrowed $100,000 at 9%, $250,000 at 10%, and $150,000 at 12%. D 400
Thank You for Playing Jeopardy! Study for your test tomorrow! Chapter 7 TEST BREAKDOWN: No Calc – 7 Questions Calc – 5 Questions TOPICS INCLUDE – Solving Systems of Equations using a variety of methods • Matrix Operations • Inverse Matrices • Determinants and Area of a Triangle • Cramer’s Rule • Applications