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The solutions manual for chapter 4 of an intermediate algebra textbook. It includes various methods for solving linear systems, such as graphing, substitution, elimination, and the use of matrices. Additionally, it covers the solution of linear inequalities through graphing. Intended for students enrolled in an intermediate algebra course.
Typology: Exams
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Each problem is worth 10 points. You must show all work to receive ftill credit.
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23^ + 2 = 5
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8. Tickets for a band cost $8 for the main floor and $6 for the balcony. If 1125 tickets were sold and the ticket sales totaled $7700, how many ticket of each type were sol (J2c^"%
Equations:. /TT"-^ ^ ^ i
9. A rowing team, while practicing, rowed an average of 16 miles per hour with the current and 8.6 miles per hour against the current. Determine the team's rowing speed in stiU water and the speed of the current.
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Equations: y
(3 KW= lie -1Z
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11. A person invested $40,000 among three different investments. He has some money invested in ( that gives 7% interest. The second account has $5,000 less than the first account and gives 5% i third account gives 3% interest. If the total interest for 1 year was $2300, find the amount invest account. ,. _/^'''''^Z~t~^''_ Let X = \vcm<'^w^^(^ faff^ Let u - ^\cv^^cl VNf'^^(;% m {^ir^.cC Let 2^ = i;nv^#('-\i y^f. y < ; : ^
one account ;ss man me tirst account and gives 5% interest. The year was $2300, find the amount invested in each
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Equations:
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