Updates and Answer Keys!

Hi All!
In green class, we discussed how to determine the number of solutions when solving an equation with variables on both sides. We took notes on that, and then practiced for our quiz tomorrow! For homework, complete Page 26 #1-19, skip #18. Here are the answers. Check them here, but make sure you show all work or you will not receive credit tomorrow!

GREEN CLASS ANSWER KEY--- PAGE 26 #1-19, skip #18

1.) x = -2
2.) z = 12.4
3.) r = -5
4.) p = 24
5.) m = 8
6.) v = 5
7.) w = 1/5
8.) a = -0.6
9.)k = -9
10.)x = 14
11.)c = 0
12.) n = -9
13.) q = 5/6
14.) y = -2
15.) no solution
16.) infinite solutions
17.) 2 = x/5; x = 10 seconds
19.) a.) 3 hours; the cost at studio A is 10 + 8h and the cost at studio B is 16 + 6h. To find when the two costs are the same, set the two expressions equal to each other and solve for the time.
b.) the costs will never be the same. the cost for studio B changes to 16 + 8h and the new equation has no solution.


In Purple, Red, and Blue class, we reviewed for our quiz tomorrow. We completed a board game review for the first time. In the Blue and Purple class, we earned +3 bonus points for our quiz tomorrow! Here are the answers to review sheet #2 that you have for homework tonight. Check them here, but make sure you show all work or you will not receive credit tomorrow!

PURPLE, RED, and BLUE CLASSES ANSWER KEY---REVIEW SHEET #2
1.) x = 1
2.) x = -2
3.) x = 10
4.) x = 1
5.) x = -2
6.) x = 1/4
7.)x = 48/7
8.) x = -2
9.)x + x+10 + x + 59 = 360; x = 97; x + 10 = 107
10.) 22 feet of cabinet