A student has a savings account earning 12% simple interest. She must pay $1250 for first-semester tuition by September 1 and $1250 for second-semester tuition by January 1. How much must she earn in the summer (by September 1) to pay the first-semester bill on time and still have the remainder of her summer earnings grow to $1250 between September 1 and January 1? We know that the interest rate as a decimal is r =_____0.12_____ and the amount of time is t = _____________years.
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
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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.
A student has a savings account earning 12% simple interest. She must pay $1250 for first-semester tuition by September 1 and $1250 for second-semester tuition by January 1. How much must she earn in the summer (by September 1) to pay the first-semester bill on time and still have the remainder of her summer earnings grow to $1250 between September 1 and January 1?
We know that the interest rate as a decimal is
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