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Week 7 DQ 6 - =-x 20 y = 25x 1y 3 8 = 0 2520 y 1y 3 8 = 5 0...

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DQ2 Post your 150 – 300 word response to the following: Review examples 2, 3, and 4 in section 8.4 of the text. Consider the strategies used here when solving problems in our forum. Take the problems 2, 6, and 8 from page 583. You solve two of these problems, step by step, for the class. Explain why you chose the methods you did. 2. Mountainside Fleece sold 40 neckwarmers. Solid-color neckwarmers sold for $9.90 each and print ones sold for $12.75 each. In all, $421.65 was taken in for the neckwarmers. How many of each type were sold? + = x y 40 . + . = . 9 9x 12 75y 421 65 = - x 40 y . - + . = . 9 940 y 12 75y 421 65 - . + . = . 396 9 9y 12 75y 421 65 . = . 2 85x 25 65 = x 9 + = x y 40 + = 9 y 40 = y 31 9 solid neckwarmers 31 print ones I decided to do substitution here since I could turn the first equation easily into x= or y= just by subtracting x or y from each side. 8. + = x y 20 . +. = . 25x 1y 3 8
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I decided to do substitution here since I could turn the first equation easily into x= or y= just by subtracting x or y from each side.
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Unformatted text preview: =-x 20 y . +. = . 25x 1y 3 8 .- +. = . 0 2520 y 1y 3 8- . + . = . 5 0 25y 0 1y 3 8- . =- . 0 15y 1 2 = y 8 + = x y 20 + = x 8 20 = x 12 12 lbs of deep though 8 lbs of oat dream granola Solve number 6! • Post the remaining problem for your classmates to solve. • Consider working out any of the following problems from the exercise set, using the method of your choice, for additional discussion. pg. 583 – 586 4, 10, 12, 14, 16, 24, 28, 32 Use the problem number and description in your subject line, so others who did the same problem can easily reference it, such as “Steve’s solution for the Boating Problem, #24.” • Consider responding to your classmates by asking clarifying questions or by expanding a classmate’s response. Also, help students solve the problem you posted by providing feedback or hints if necessary. You may also want to provide an explanation for your solution after a sufficient number of students have replied....
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