![Lesson 49.notebook February 05, 2013
Assignment:
1-->Set 49 (odds) - Due Tomorrow [2/6]
2-->Test signed??](https://image.slidesharecdn.com/7thprealg-l49-feb5-130205103415-phpapp01/85/7th-pre-alg-l49-feb5-1-320.jpg)
7th pre alg -l49--feb5
- 1. Lesson 49.notebook February 05, 2013 Assignment: 1-->Set 49 (odds) - Due Tomorrow [2/6] 2-->Test signed??
- 2. Lesson 49.notebook February 05, 2013 Lesson 49 Warm-Up: 1) Solve: 4x2 = 64 (all solutions) 2 in 2) Expand: -5(4r - 2d - 1) 3) Find the perimeter: 10 in 4 in 10 in 4) Simplify: 3/8 - 1/2 x 2/3 x 3/4 5) 33 3 + 3 - 3(3)
- 3. Lesson 49.notebook February 05, 2013 Lesson 49: FYI...We can solve rate problems 2 ways: --with proportions (McDonald's arches) --by multiplying by the unit rate
- 4. Lesson 49.notebook February 05, 2013 Examples (Lesson 49): Solve the following by using a ratio box/proportion. A) If 5 pounds of seedless grapes cost $3.80, how much would 9 pounds cost?
- 5. Lesson 49.notebook February 05, 2013 B) If 8 cows eat 200 pounds of hay a day, how many pounds of hay would 20 cows eat in a day?
- 6. Lesson 49.notebook February 05, 2013 C) Don can type 135 words in 3 minutes. At that rate, how many minutes would it take him to type 450 words?
- 7. Lesson 49.notebook February 05, 2013 D) Find the price per pound of grapes in "a", the pounds of hay per cow in "b", and the words per minute in "c".
- 8. Lesson 49.notebook February 05, 2013 E) Solve examples "a" & "b" again using a rate instead of a proportion.