5Math Chapter 7 Study Guide Answers

1. A numerical expression is a combination of numbers and at least one operation.
2. An ordered pair shows the position of the point on a coordinate plane.
3. The order of operations is a set of rules that tells which operation to do first when evaluating an expression.
4. A coordinate plane is a plane that is formed when two perpendicular lines intersect.
5. The x-coordinate is the first number in an ordered pair and corresponds to a number on the x-axis.
6. 88
7. 430
8. 17
9. 18
10. 300
11. 30
12. 18 / 3 + 9
13. (13-5) + 3 x 7
14. 12 x 2; 2; 2
15. (1,3)
16. (3,5)
17. (5,7)
18. H
19. K
20. G
21. subtract 39 from the product of 12 and 6; 33 containers
22. Fashion for All- $13, $26, $39, $52; Designer Pants- $26, $52, $78, $104; The cost at Designer Pants is twice the cost at Fashion for All.
23. (2 x 7) + (3 x 2); 20 laps
24. Playground
25. (1,3)
26. A