Zebulon wants to borrow money. He writes a note that guarantees that 420 days from now he will give an amount of $1284.00 to whoever brings back the note to him. Yolanda wants to invest. She purchases the note from Zebulon. She pays $1200. After 120 days, Yolanda sells the notes to Walter for $1273.39. Walter keeps the note until maturity. (a) What is the simple interest rate earned by Yolanda? Note that negative rates may occur. When this happens it means that Yolanda lost money :( (b) What is the simple interest rate earned by Walter? (c) What is the simple interest rate at which Zebulon borrowed?
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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