Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
Solve the following problems.
- How much interest is charged when P50, 000 is borrowed for 9 months at an annual interest rate of 10%?
- When invested at annual interest rate of 7%, the amount earned P11,200 of simple interest in two years. How much money was originally invested?
- If an entrepreneur applies for a loan amounting to P500, 000 in a bank, the simple interest of which is P157,500 for 3 years, what interest rate is being charged?
- Find the maturity value and the compound interest if P10,000 is compounded annually at an interest rate of 2% in 5 years.
- Suppose your father deposited in your bank account P10,000 at an annual interest rate of 0.5% compounded yearly when you graduate from kindergarten and did not get the amount until you finish Grade 12. How much will you have in your bank account after 12 years?
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