7th grade- answers to review

Hi everyone,

I was out today with Joseph who was sick. I will be back tomorrow, and you will have your quiz as scheduled. Don't forget to bring your calculator and free reading book!

Work some problems! Remember only 4 problems from last section (writing inequalities).

Answers to review (assigned in class):

pg. 304 # 6 - 14 all
6.) x + 2 < 6; x < 4          7.) 9 < x + 1; x > 8

8.) x - 7 > 14; x > 21        9.) 8x > 40; x > 5

10.) A    11.) C      12.) D     13.) B

pg. 307 # 1 -6 all
1.) C = 88 in        2) r = 23.9 cm        3) a < -3      4) z < 7

5) b > 1.5 (or 1 and 1/2)         6.) 6x - 2 > 40;    x > 7

pg. 309 # 20 - 25 all, #31, #32
20.) c = 132 ft         21.) C = 25.1 mm          22.) d = 20 mm

23.) r = 1.91 in         24.) 279 ft       25.) x > -7   graph, open circle above -7, arrow pointing towards right

31.) 14 - 3x < 11; x > 1          graph, closed circle above 1, arrow pointing towards right

32.) 9 + 4x < 21; x < 3    graph, open circle above 3, arrow pointing towards left