Assignment:
Q1. 13 /18 + 11 /18
Q2. 18/ 23 - 13 / 23 - 3/ 23
Q3. Number problem. One task took 7 minutes (min), a second task took 12 min, and a third task took 21 min. How long did the three tasks take, as a fraction of an hour?
Q4. Geometry. Find the perimeters of the following triangles
3/ 8 cm 3/ 8cm 3/ 8cm
Q5. Find the least common multiple (LCM) for each of the following group of numbers. Use which ever method you wish
Q6. Perform the indicated operations
Q7. 1 1/15 + 3 3/10 - 2 4/5
Q8. Statistics. Robin ran 5 1/3 miles on Sunday, 2 1/4 miles on Tuesday, and 3 1/2 miles on Friday. How far did she run during the week?
Q9. Business and finance. 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?
Q10. Business and finance. 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?
Q11. Business and finance. 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)?
Q12. 7 11/ 12 divided by 6 1/10
Q13. Benjamin and Olivia are putting a new floor in their kitchen. To get the floor up to the desired height, they need to add 1 1/8ft of sub floor. They can do this in one of two ways. They can put 1/2in. sheet on top of 5/8in. board (note that the total would be 9/8ft or 1 1/8ft). They could also put 3/8in.board on top of 3/4in. sheet. The table below gives the price for each sheet of plywood from a Home Depot store on 1/15/04.
Thickness cost for a 4ft x 8ft sheet
1/8in. $9.15
1/4in. $13.05
3/8in. $14.99
1/2in. $17.88
5/8in. $19.13
3/4in. $21.36
7/8in. $25.23
1 in. $28.49
Q1. What is the combined price for a 1/2in. sheet and a 5/8in. sheet?
Q2. What is the combined price for a 3/8in. sheet and a 3/4in. sheet?
Q3. What other combination of sheets of plywood yields the needed 1 1/8in. thickness?
Q4. Of the four combinations, which is most economical?
Q5. The kitchen is to be 12ft X 12ft. Find the total cost of the plywood you have suggested in question 4.
Provide complete and step by step solution for the question and show calculations and use formulas.