Alg1A_ch3_day3.notebook October 30, 2012

Warm Up Problems

Solve: 1.) 2.)

3.) A photo that is 3 inches wide and 5 inches long is enlarged to a width of 8 inches. How long is the new photo?

Alg1A_ch3_day3.notebook October 30, 2012

Answers to p. 142­143 #25­47 (odd), 49­54, 58, 59

25.) m = ­2 27.) b = 29.) t = 18

31.) x = 33.) y = 84 35.) x = ­40

37.) m = 3 39.) x = ­90 41.) t = ­1

43.) z = 45.) t = 20 47.) y =

49.) 52x = 676 ; 13 pieces

50.) x/8 = 50 ; 400 students

51.) ; $8.80

52.) x/12 = 45 ; 540 peanuts

53.) 30,000x = 10,000 ;

54.) 45 sec

58.) x = 3 ft. 59.) x = 6 in.

Alg1A_ch3_day3.notebook October 30, 2012

Solving Multi­Step Equations

*) Simplify one or both sides of the equation

*) Use inverse operations to isolate the variable

Alg1A_ch3_day3.notebook October 30, 2012

Assignment: pp. 148­149 #16­36 (even), 37­43

Alg1A_ch3_day3.notebook October 30, 2012