week 3 Checkpoint - 3.4 254 26 1 2/30 3 9/30 – 2 24/30 =...

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Sectio n Page # Proble m # Please put your work and/or answer in  this column Corrections by  Instructor Credit Earne d 3.1 219 18 13/18 + 11/18 = 4/3 = 1 1/3 220 38 9/11 – 3/11 + 7/11 = 13/11 = 1 2/11 220 44 7/60 + 12/60 + 21/60 = 40/60 = 2/3 222 50 3/8 + 3/8 + 3/8 = 9/8 = 1 1/8 cm 3.2 228 22 (12*20)/4 = 60 dividing out the  common factor, (60*35)/5 = 420 3.3 241 36 20/60 + 25/60 + 48/60 = 93/60 = 31/20  = 1 11/20 241 44 52/60 – 33/60 = 19/60 Activity 7: Kitchen  Subflooring 247 1 17.88 + 19.33 = 37.21 2 14.99 + 21.36 = 36.35 3 1/4 in + 7/8 in, 1/8 in + 1 in 4 The above are 38.28 and 37.64.  3/8  in + 3/4 in is least expensive. 5 144/32 = 9/2 = 4 ½ sheets are  required.  4 ½ * 36.35 = 163.58 if you  can buy ½ of a sheet.  If not, 5 sheets  are required costing 5*36.35 = 181.75
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Unformatted text preview: 3.4 254 26 1 2/30 + 3 9/30 – 2 24/30 = 3 41/30 – 2 24/30 = 1 17/30 255 30 5 4/12 + 2 3/12 + 3 6/12 = 10 13/12 = 11 1/12 257 48 14 2/8 – 12 3/8 = 13 10/8 – 12 3/8 = 1 7/8 % 3.5 265 14 120 * 1/50 = 120/50 = 12/5 = 2 2/5. He should allow 2 per hour, or 12 each 5 hours. 16 $3 * ½ * 20 = $3/2 * 20 = $30 24 To estimate, 17 11/12 is slightly less than 18, and 6 1/10 is slightly more than 6, so the quotient is slightly less than 18/6 = 3. Solving exactly, 215/12 ÷ 61/10 = 215/12 * 10/61 = 215/6 * 5/61 = 1075/366 = 2 343/366. Name: Brandon Hunter Date: 7/30/2011 Checkpoint # Week 3 Checkpoint Be sure to show all work for optimum success....
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week 3 Checkpoint - 3.4 254 26 1 2/30 3 9/30 – 2 24/30 =...

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