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July 31, 2015

Homework Help: math

Posted by Tonya on Friday, February 15, 2008 at 5:44pm.

I need help bad.

Fractions
1)1/3 + 5/12 + 4/5 =

2)13/15 - 11/20 =

3)1 1/15 + 3 3/10 - 2 4/5 =

4)Robin ran 5 1/3 mi on Sunday, 2 1/4mi on Tues, and 3 1/2mi on Fri. How far did she run during the week?

5)The interest rate on an auto loan in May was 12 3/8%. By September the rate was up to 14 1/4%. How many percentage points did the interest rate increase over the period?

6)Julio works as a quality control expert in a beverage factory. The assembly line that he monitors produces about 20,000 bottles in a 24-hour period. julio samples about 120 bottles an hour and rejects the line if he finds more than 1/50 of the sample to be defective. About how many defective bottles should Julio allow before rejecting the entire line?

7)Lunch meat sells for about $3 per pound. You use about 1/2 pound per day for sandwiches. How much should you budget for lunch meat over the next month (about 20 workdays)?

8)17 11/12 / 6 1/10 =

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