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Lesson 49.notebook                                   February 05, 2013



            Assignment:

            1-->Set 49 (odds) - Due Tomorrow [2/6]
            2-->Test signed??
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)
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
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?
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?
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?
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".
Lesson 49.notebook                                                         February 05, 2013




             E) Solve examples "a" & "b" again using a rate instead of a
             proportion.

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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.