1) The document contains an assignment with 3 parts due on different dates, a warm-up lesson with 5 math problems, and information about solving rate problems with proportions or by multiplying the rate.
2) Examples are provided to solve rate problems using a ratio box/proportion about the cost of grapes, amount of hay eaten by cows, and time to type a certain number of words.
3) Readers are asked to find unit rates from the examples and to solve the first two examples again using rates instead of proportions.
2. 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)
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3. Lesson 49:
FYI...We can solve rate problems 2 ways:
--with proportions (McDonald's arches)
--by multiplying by the unit rate
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4. 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?
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5. B) If 8 cows eat 200 pounds of hay a day, how many pounds of
hay would 20 cows eat in a day?
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6. C) Don can type 135 words in 3 minutes. At that rate, how many
minutes would it take him to type 450 words?
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7. 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".
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8. E) Solve examples "a" & "b" again using a rate instead of a
proportion.
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