Question Details

MAT 120 MODULE 8 CHECK YOUR UNDERSTANDING

1.	Solve the system using the substitution method.
7x - 2y = 5
6x + 5y = 11

	1
2.	Solve the system of equations by using the elimination method.
x+y=9 
2x-3y=-2

	1
3.	Solve the system of equations by using the elimination method.
x + y = 4 
x - y = 2

4.	A mail-order garden equipment business shipped 120 packages one day. Customers were charged $3.50 for each standard-delivery package and $7.50 for each express-delivery package. Total shipping charges for the day were $596. How many of each kind of packages were shipped?

	1
5.	Solve the system using the substitution method.
y = 3x + 2
3x - y = -3

	1
6.	Solve the system by the substitution method.
4x + 3y = 5
6x + y = -1

	1
7.	The owner of The Daily Grind coffee shop mixed French roast coffee worth $9.00 per pound with Kenyan coffee worth $7.50 per pound in order to get 10 pound mixture worth $8.40 per pound. How much of each type of coffee was used?

	1
8.	Adult tickets for a play cost $8 and child tickets cost $6. If there were 20 people at a performance and the theatre collected $152 from ticket sales, how many adults and how many children attended the play?

	1
9.	Solve the system of equations by the elimination method.
x - y = 4 
x + 2y = -14

	1
10.	Solve the system of equations by the elimination method.
2x + 5y = -12 
7x - 5y = 3

	Mathematics Help, Mathematics Homework help, Mathematics Study Help, Mathematics Course Help