1. Algebra TEXAS StyleA2warmup21 Algebra 2 Warm-up 21

2. Algebra TEXAS StyleA2warmup21 1.Which of the following would not be an effective process to solve this system of equations? 3x + 2y = -1 x + 3y = -5 A.Combine the first equation with –3 times the 2 nd equation. B.Solve the second equation for x and substitute into the first equation. C.Combine the first equation with the second equation. D.Multiply the 2 nd equation by 3 and subtract the resulting equation from the first equation.

3. Algebra TEXAS StyleA2warmup21 2. What is the solution to the system shown in the tables below? A. (-3,-9) B. (-6,-7) C. (-12,-10) D. (0,-11) xy -12-10 -9 -8 -6-7 -4-6 xy -9-5 -6-7 -3-9 0-11 3-13

4. Algebra TEXAS StyleA2warmup21 3. What is the solution to the system shown in the tables below? A.(-7,2) B.(1,10) C.(-3,4) D.(9,21) xy 1-6 3-11 5-16 7-21 xy -72 -51 -34 7 110

5. Algebra TEXAS StyleA2warmup21 4. Bill is a waiter at Granny’s Kitchen. He earns $4 per hour plus tips. On most Saturday evening shifts he serves an average of 10 tables per hour. During last Saturday evenings 4-hour shift, he earned $118. What is the mean tip per table? A.$2.55 B.$2.85 C.$7.80 D.$10.20

6. Algebra TEXAS StyleA2warmup21 5. A paperweight is a snow globe in the shape of a cube of side length 3 in. It contains a solid sphere with a diameter of 2 in. What is the approximate volume of liquid that the snow globe contains? A.6.5 in 3 B.22.8 in 3 C.24.9 in 3 D.3.1 in 3

7. Algebra TEXAS StyleA2warmup21 6. A circle is cut from the center of a larger cardboard circle. As the size of the center circle increases, the remaining area decreases. xxx Small circle r = 1Small circle r = 3Small circle r = 2 Continuing this pattern, what is the difference between the remaining area of the 2 nd circle and the 5 th circle? A. 3π B. 6π C.21π D.23π

8. Algebra TEXAS StyleA2warmup21 7. Compare and contrast the graphs of and.

9. Algebra TEXAS StyleA2warmup21 8. Jill, Michelle, Sandy and Rhonda went shopping. Jill spent $10 more than Michelle. Michelle spent twice as much as Sandy. Sandy spent $5 less than Rhonda. They spent a total of $135. How much did Michelle spend?

10. Algebra TEXAS StyleA2warmup21 9. Roger has an soft serve ice cream stand. He serves only 4 flavors, vanilla, chocolate, strawberry, and butter pecan. He recorded the sales from this past weekend. Vanilla – 21, chocolate – 19, strawberry – 8, and butter pecan – 12. If Roger puts this data in a circle graph, what is the number of degrees needed for the sector representing chocolate? A.114° B.31.7° C.52.8° D.136.8°

11. Algebra TEXAS StyleA2warmup21 10.Juanita is in a college class. The final grade consists of 60% of the mean of 3 tests and 40% of the final exam. Her 3 test grades are 96, 85, and 83. What must she make on the final exam to have at least a 90 average?

12. Algebra TEXAS StyleA2warmup21

13. Algebra TEXAS StyleA2warmup21 A2Warm-up 21 #AnsObjTEKS 1C108.15A 2B4A.8B 3C4 4A108.14A 5B108.14C 6C108.14B 7B5A.9B 840108.14C 9A98.12C 109398.12A