A bank loaned out $23,500, part of it at the rate of 5% annual interest, and the rest at 10% annual interest. The total interest earned for both loans was $1,450.00. How much was loaned at each rate? Maria invests a total of $28,000 in two accounts. The first account earned a rate of return of 13% (after a year). However, the second account suffered a 10% loss in the same time period. At the end of one year, the total amount of money gained was $1,225.00. How much was invested in each account? If 136 people attend a concert and tickets for adults cost $2.5 while tickets for children cost $1.5 and total receipts for the concert was $271, how many of each went to the concert? Lucas invests $4200 in two different accounts. The first account paid 8 %, the second account paid 13 % in interest. At the end of the first year, he had earned $421 in interest. How much was in each account? Chase just retired and has $830,000 to invest. A very safe Certificate of Deposit (CD) account pays 1.5%, while a riskier bond fund pays 4.5% in interest. Chase figures he needs $21,000 a year in interest to live on. How much should he invest in each account to make enough interest while minimizing his risk?
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.
A bank loaned out $23,500, part of it at the rate of 5% annual interest, and the rest at 10% annual interest. The total interest earned for both loans was $1,450.00. How much was loaned at each rate?
Maria invests a total of $28,000 in two accounts. The first account earned a rate of return of 13% (after a year). However, the second account suffered a 10% loss in the same time period. At the end of one year, the total amount of money gained was $1,225.00. How much was invested in each account?
If 136 people attend a concert and tickets for adults cost $2.5 while tickets for children cost $1.5 and total receipts for the concert was $271, how many of each went to the concert?
Lucas invests $4200 in two different accounts. The first account paid 8 %, the second account paid 13 % in interest. At the end of the first year, he had earned $421 in interest. How much was in each account?
Chase just retired and has $830,000 to invest. A very safe Certificate of Deposit (CD) account pays 1.5%, while a riskier bond fund pays 4.5% in interest. Chase figures he needs $21,000 a year in interest to live on. How much should he invest in each account to make enough interest while minimizing his risk?
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