The ordered pair that satisfies all equations in the system.
1 point
1
Question 6
6.
In the systems of equation below, I can eliminate x by adding because the coefficients are opposites.
4x + 8y = 20
−4x + 2y = −30
1 point
1
Question 7
7.
What variable do you eliminate, and what do you multiply the equation(s) by?
5x + y = 9
10x − 7y = −18
1 point
1
Question 8
8.
Does the system have one, none or infinite solutions?
8x + 4y = 12
y = -2x + 3
1 point
1
Question 9
9.
A total of 24 students are in Alfred’s class. The number of girls in the class is 3 more than twice the number of boys. Which system of equations can be used to find g, the number of girls who are in Alfred’s class, and b, the number of boys?
1 point
1
Question 10
10.
Mr. Newman bought 8 tickets to a chili supper and spent a total of $30. He bought a combination of adult tickets for $5 each and child tickets $3 each. Which system of equations below will determine the number of child tickets, c, and the number of adult tickets, a, he bought?