Disposable income Disposable income is the amountleft after taxes have been paid and is one measure ofhealth of the economy. The total disposable incomefor the United States, in billions of dollars, forselected years from 2010 and projected to 2040 canbe modeled by D(x) = 0.328x + 6.32, where x isthe number of years after 2000. In what year doesthis model project the total disposable income for theUnited States to be $12.88 billion?(Source: U.S. Bureau of Economic Analysis)
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.
Disposable income Disposable income is the amount
left after taxes have been paid and is one measure of
health of the economy. The total disposable income
for the United States, in billions of dollars, for
selected years from 2010 and projected to 2040 can
be modeled by D(x) = 0.328x + 6.32, where x is
the number of years after 2000. In what year does
this model project the total disposable income for the
United States to be $12.88 billion?
(Source: U.S. Bureau of Economic Analysis)
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