3x-5y = 23 each Write and solve a system of equations for each problem. 28. VIP seating, reserved seating, and general admission tickets were sold for the school more general admission tickets than the total number of VIP and reserved tickets, how many of and $5 each, respectively. The drama department sold 360 tickets for a total of $2800. If there were 4 type of ticket were sold? 29. Mr Jonno in growth fund that lost 8%, a balanced 1600 on his investment. at in each fi If
3x-5y = 23 each Write and solve a system of equations for each problem. 28. VIP seating, reserved seating, and general admission tickets were sold for the school more general admission tickets than the total number of VIP and reserved tickets, how many of and $5 each, respectively. The drama department sold 360 tickets for a total of $2800. If there were 4 type of ticket were sold? 29. Mr Jonno in growth fund that lost 8%, a balanced 1600 on his investment. at in each fi If
Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter12: Algebra Of Matrices
Section12.CM: Cumulative Review Problem Set
Problem 113CM
Related questions
Question
I need help with 28. Algebra 2 third edition isbn: 978-1-64626-475-9
![me? - All
Al
18. Adrian, Nathan, and Brian bought lunch from the conces
and a drink; Nathan paid $4.00 for a burger and a drink and
a. Write three equations modeling the cost of their lunches using b
b. Solve the system of equations to determine the cost of each food item.
burger, fries, and a drink.
19. Larry has a total of 24 nickels, dimes, and quarters whose total value is $3. The number of nickels,
a. Write three equations modeling the total number of coins, the value of the coins, and the relation
b. Solve the system of equations to determine how many of each coin Larry has.
the sum of the number of dimes and quarters.
between the number of nickels and other coins.
mp chair ar
B. Exercises
Solve each system.
20. x + 2y +z = 8
y 3z = 9
z=-2
22. y = 2x + 5
1
3x + y -z = 8
6x - 3y + z = -18
24. 5x + 3y = 17
2r - 4z = 2
-
3x + y = 5z = 7
21. 2x+3y=z=5
2y + 5z = 11
== 4
SOLVING SYST
23. x - 2= = 5
2x + 3y +z = 9
3y=z=11
25. 5x - 4y = 88
2x + 8z = 96
2y-2=-1
27. 2x - 3y = − 1
&x + 6z = 34
4x − 9y+ 2z = 6
-
ge
DIXON TICONDE
IGAS
$15, $10,
40
of each
26. x + 2y - 3z = 3.9
4y + 2z = 3.8
3x - 5y
= 23
Write and solve a system of equations for each problem.
If he
28. VIP seating, reserved seating, and general admission tickets were sold for the school play at
and $5 each, respectively. The drama department sold 360 tickets for a total of $2800. If there were 4
more general admission tickets than the total number of VIP and reserved tickets, how many
29. Mr. Jonas invested a total of $100,000 in three mutual funds: a growth fund that lost 8%, a
fund that gained 3%, and a bond fund that gained 2%. As a result, he lost $1600 on his investment.
invested $20,000 more in the growth fund than in the bond fund, how much did he invest in each fund
is 396 more than the original number. If the tens digit is twice the hundreds digit, what is the original
30. The sum of the digits in a certain three-digit number is 12. If the digits are reversed, the number forme
The general form of a parabolic graph is y = ax² + bx + c. Use the fact that the points (-1, 14),
-1, -2), and (2, -4) lie on a parabola to determine the constants a, b, and c and to write the equation
type of ticket were sold?
number?
of the parabola.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fff6bd976-a178-4e97-8ed2-a368c3536cfe%2Fd8c93eda-561f-4009-ab8d-bf9bbbdc4d5d%2Fl3aacbd_processed.jpeg&w=3840&q=75)
Transcribed Image Text:me? - All
Al
18. Adrian, Nathan, and Brian bought lunch from the conces
and a drink; Nathan paid $4.00 for a burger and a drink and
a. Write three equations modeling the cost of their lunches using b
b. Solve the system of equations to determine the cost of each food item.
burger, fries, and a drink.
19. Larry has a total of 24 nickels, dimes, and quarters whose total value is $3. The number of nickels,
a. Write three equations modeling the total number of coins, the value of the coins, and the relation
b. Solve the system of equations to determine how many of each coin Larry has.
the sum of the number of dimes and quarters.
between the number of nickels and other coins.
mp chair ar
B. Exercises
Solve each system.
20. x + 2y +z = 8
y 3z = 9
z=-2
22. y = 2x + 5
1
3x + y -z = 8
6x - 3y + z = -18
24. 5x + 3y = 17
2r - 4z = 2
-
3x + y = 5z = 7
21. 2x+3y=z=5
2y + 5z = 11
== 4
SOLVING SYST
23. x - 2= = 5
2x + 3y +z = 9
3y=z=11
25. 5x - 4y = 88
2x + 8z = 96
2y-2=-1
27. 2x - 3y = − 1
&x + 6z = 34
4x − 9y+ 2z = 6
-
ge
DIXON TICONDE
IGAS
$15, $10,
40
of each
26. x + 2y - 3z = 3.9
4y + 2z = 3.8
3x - 5y
= 23
Write and solve a system of equations for each problem.
If he
28. VIP seating, reserved seating, and general admission tickets were sold for the school play at
and $5 each, respectively. The drama department sold 360 tickets for a total of $2800. If there were 4
more general admission tickets than the total number of VIP and reserved tickets, how many
29. Mr. Jonas invested a total of $100,000 in three mutual funds: a growth fund that lost 8%, a
fund that gained 3%, and a bond fund that gained 2%. As a result, he lost $1600 on his investment.
invested $20,000 more in the growth fund than in the bond fund, how much did he invest in each fund
is 396 more than the original number. If the tens digit is twice the hundreds digit, what is the original
30. The sum of the digits in a certain three-digit number is 12. If the digits are reversed, the number forme
The general form of a parabolic graph is y = ax² + bx + c. Use the fact that the points (-1, 14),
-1, -2), and (2, -4) lie on a parabola to determine the constants a, b, and c and to write the equation
type of ticket were sold?
number?
of the parabola.
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