Answer to Question #319374 in Math for Zane

Question

C. Choose a quantity to be represented by a variable, then write a mathematical expression for each.

1. The product of three consecutive integers

2.. Jose's age in 10 years

3. The distance traveled by a man driving at the rate of 45 kph

4. The total amount in pesos of 30 coins consisting of 5-peso coins and 10-peso coins

5. The sum of three consecutive odd integers

6. The fraction of work done by a man who can finish a job in three days

7. The total interest after one year if a fraction of P500 000 is invested at 5% annual interest rate and the remaining part is invested at 7.5% annual interest rate

8. A three-digit number whose hundreds digit is twice its tens digit and the tens digit is 3 more than the units digit

9. The percentage of alcohol in a mixture formed by combining 1.5 liter of pure water and x liters of 30% alcohol solution.

10. The total distance traveled by a boat 1 hour and 20 minutes upstream and 40 minutes downstream if the rate of the current is 3 kph.