# wk 3 chpt - How long did the three tasks take, as a...

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MAT 115 – Checkpoint Assignment – Week 3 Student Name: Lyndsey Watson  -0.5, 29/30 Week No: 3 Instructions : For each assigned problem, state the original problem and show your steps taken to get the final answer in the “Your Solution” column. Then, restate the final answer in the last column. If the problem includes units of measure, be sure to include the units (e.g. “45 feet” or “32.1 meters”). Also, be sure to read the post “How to Submit Assignments”. You must name this file as indicated in this post. Put only one problem in each row.

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Page # Prob # Your Solution Final Answer 219 18 Add. Write all answers in lowest terms. 18 11 18 13 + = 13 + 11 = 18 24 = 3 1 1 18 3 1 1 220 38 Evaluate each of the following. Write all answers in lowest terms. 11 7 11 3 11 9 + - = 9 – 3 = 11 2 1 11 13 11 7 11 6 = = + 11 11 2 1 220 44 Number problem. One task took 7 minutes (min), a second task took 12 min, and a third task took 21 min.
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Unformatted text preview: How long did the three tasks take, as a fraction of an hour? 60 21 60 12 60 7 + + = 60 40 = 3 2 3 2 of an hour 222 50 Find the perimeters of the following triangles. cm 8 3 cm 8 3 cm 8 3 cm 8 1 1 8 9 8 3 8 3 8 3 = = + + cm 8 1 1 228 22 Find the least common multiple (LCM) for each of the following groups of numbers. Use whichever method you wish. 12, 20, and 35 12: 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240, 252, 264, 276, 288, 300, 312, 324, 336, 348, 360, 372, 384, 396, 408, 420 20: 20, 40, 60, 80, 100, 120, 140, 160, 180, 200, 220, 240, 260, 280, 300, 320, 340, 360, 380, 400, 420 35: 35, 70, 105, 140, 175, 210, 245, 280, 315, 350, 385, 420 420 241 36 Add 5 4 12 5 3 1 + + 60 20 20 3 20 1 = 60 25 5 12 5 5 = 60 48 12 5 12 4 = 20 11 1...
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## wk 3 chpt - How long did the three tasks take, as a...

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