Tony borrowed a personal loan of $15 000 from the bank. The first three months of loan payments are shown in the table. Amount borrowed $15 000 This table assumes the same number of days in each month. i.e. I = Px Annual interest rate (r) 7% Monthly repayment (R) $900 Month (n) Principal (P) Interest (I) P+1 P+I-R 1 $15 000.00 $87.50 $15 087.50 $14 187.50 $14 187.50 $82.76 $14 270.26 $13 370.26 3 $13 370.26 $77.99 $13 448.25 $12 548.25 (a) How much interest did Tony pay in the first three months? (b) How much of the principal would be repaid after the 4th payment? (c) Tony made a payment of $6000 as the 4th payment. How much interest did he save in the 5th month?
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.
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