One of your friends missed class, and you are helping them get caught up. Which of the following is the best explanation for the answer for the meaning of 2.45x? a. If you convert 2.45 to a percent, you get 245%. So multiplying by 2.45 is an increase of 245%. b. 2.45x increases by 245% because x + 1.45x = 2.45x c. 2.45x is 1x + 1.45x, where 1x is 100% of x and 1.45x is 145% of x. So you are adding 100% + 145%, which is an increase of 145% over the original 100% d. Think of 2.45x as a percent, so when you multiply by 2.45% you are actually decreasing x by 97.55%.
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.
One of your friends missed class, and you are helping them get caught up. Which of the following is the best explanation for the answer for the meaning of 2.45x?
a. If you convert 2.45 to a percent, you get 245%. So multiplying by 2.45 is an increase of 245%.
b. 2.45x increases by 245% because x + 1.45x = 2.45x
c. 2.45x is 1x + 1.45x, where 1x is 100% of x and 1.45x is 145% of x. So you are adding 100% + 145%, which is an increase of 145% over the original 100%
d. Think of 2.45x as a percent, so when you multiply by 2.45% you are actually decreasing x by 97.55%.
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