A man had 3 children Ama, Fiifi and Ebo, whom he gave an amount of 8000 to be shared among them. At the start of the year 2020, the three siblings decided to invest their share in an interest-bearing account. They were able to negotiate different interest rate for their investment based on their negotiating skills. In particular, Ama, Fiifi and Ebo were able to negotiate 5%, 10% and 8% respectively on their investment. At the end of the year, 2018, the three siblings were able to earn a total interest of ¢600. In addition, supposed the amount of money given to Ebo is ¢300 more than the amount given by her two siblings combined. a) Write down the three linear equations. b) Represent them in the matrix form Ax = b c) Find the determinant of the matrix A d) Find the amount of money given to each of the 3 siblings using matrix inversion
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 man had 3 children Ama, Fiifi and Ebo, whom he gave an amount of 8000 to be shared among them.
At the start of the year 2020, the three siblings decided to invest their share in an interest-bearing
account. They were able to negotiate different interest rate for their investment based on their
negotiating skills. In particular, Ama, Fiifi and Ebo were able to negotiate 5%, 10% and 8% respectively
on their investment. At the end of the year, 2018, the three siblings were able to earn a total interest of
¢600. In addition, supposed the amount of money given to Ebo is ¢300 more than the amount given by
her two siblings combined.
a) Write down the three linear equations.
b) Represent them in the matrix form Ax = b
c) Find the determinant of the matrix A
d) Find the amount of money given to each of the 3 siblings using matrix inversion
Trending now
This is a popular solution!
Step by step
Solved in 5 steps with 39 images
