Classwork to Practice
1) Bruce added 5 boxes of a dozen eggs to 2 boxes of a dozen eggs. How many eggs are being shipped?
Choose the expression that represents the facts of the problem. a5 + 2 (12) b5 (12) + 2 c5 (12) + 2(12)5 d(12) (2) 2) The Giants added 3 threepoint field goals to 4 sevenpoint touchdowns. What is the score of the Giants? Choose the expression that represents the facts of the problem. a3 + 7 (7) b3 + 7 (3) c3 + 3 + 4 + 7 d4 (7) + 3 (3) 3) Find the average of 5 test grades: 87, 78, 92, 75, and 81. Choose the expression that represents the facts of the problem. a87 + 78 + 92 + 75 + 81/58 b7 (78) (92) (75) (81/5) c(87 + 78 + 92 + 75 + 81)/5 d5/(87 + 78 + 92 + 75 + 81) 
4) Astro Paving Co. plans to resurface 10,560 ft of highway in 16 equal sections.
How many feet will be resurfaced in each section? a660 ft b168,960 ft c660 sections d102.76 ft 5) Ken sold 95 shares of stock for $42.17 per share and 300 shares of another stock for $28.92. How much did he receive from the stock sale? a$4,006.15 b$12,682.15 c$71.09 d$395 Answers:
1.c 2.d 3.c 4.c 5.b 
Solve applied problems using problemsolving strategies:
SixStep ProblemSolving Plan
A retailer buys 75 cases of computer paper at $15.35 per case. If each case sells for $20.99, what is his gross profit?
Unknown facts:
Total revenue from sale of paper
Gross profit
Known facts:
75 cases of paper
Cost of $15.35 per case
Selling price of $20.99 per case
Relationships:
Cost = number of cases × cost per case
Total Revenue = number of cases × selling price per case
Gross Profit = Total Revenue – Total Cost
Estimation:
The profit per case is more than $5 per case. $5 (80) = $400. The gross profit should be approximately $400.
Calculation:
Total Cost = number of cases × cost per case
Total Cost = 75 ($15.35)
Total Cost = $1,151.25
Total Revenue = number of cases × selling price per case
Total Revenue = 75 × $20.99
Total Revenue = $1,574.25
Gross Profit = Total Revenue – Total Cost
Gross Profit = $1,574.25 – $1,151.25
Gross Profit = $
 Identify the unknown facts or the question to be answered.
 Identify the known facts.
 Determine the relationship between the known and unknown facts.
 Estimate the answer or the characteristics of a reasonable answer.
 Perform the calculations.
 Interpret the results of the calculations within the context of the problem.
A retailer buys 75 cases of computer paper at $15.35 per case. If each case sells for $20.99, what is his gross profit?
Unknown facts:
Total revenue from sale of paper
Gross profit
Known facts:
75 cases of paper
Cost of $15.35 per case
Selling price of $20.99 per case
Relationships:
Cost = number of cases × cost per case
Total Revenue = number of cases × selling price per case
Gross Profit = Total Revenue – Total Cost
Estimation:
The profit per case is more than $5 per case. $5 (80) = $400. The gross profit should be approximately $400.
Calculation:
Total Cost = number of cases × cost per case
Total Cost = 75 ($15.35)
Total Cost = $1,151.25
Total Revenue = number of cases × selling price per case
Total Revenue = 75 × $20.99
Total Revenue = $1,574.25
Gross Profit = Total Revenue – Total Cost
Gross Profit = $1,574.25 – $1,151.25
Gross Profit = $
Interpretation
The gross profit for the computer paper is $423.
Earning Money  Taxi Driver

Earning Money  Taxi Driver
