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How can you use proportional reasoning to solve problems involving percent?
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How do you get 100 percent on scantron?
Answer 100% of the questions/problems correctly.
What happens to the circumference of a circle when the radius is increased by 50 percent?
The circumference is directly proportional to the radius. So increasing the radius by 50% causes the circumference to also increase by 50%.
How many questions would you miss to get 80 percent out of 20 problems?
Four questions.
How do you find the percent of a number?
The first step in calculating the percent of numbers is to change the percent to a decimal. When you see the word "of" in word problems, that signals multiplication, so take the decimal and multiply by the number.
What mathematical skills are required to solve problems using proportions?
Three mathematical concepts are inherent to solving proportional equations. The first is algebraic operations, and using the same process on both sides of the parenthesis' expression. Other algebraic skills include cross-multiplication, division, and simplification of quantities. The second is an understanding of percent's and fractions, which can help visualize the proportions.
How does proportional reasoning relate to percent?
A percent is a proportion with the denominator equalling 100.
If two quantities are directly proportional when one quantity increases by 10 percent what does the other do?
increases by 10 percent increases by 10 percent increases by 10 percent
It is estimated that the percentage of terrorist activities involving explosives is about?
It is estimated that the percentage of terrorist activities involving explosives is around 40-50%. Explosives are commonly used by terrorist groups to cause significant damage and casualties in attacks. These groups often seek to instill fear and achieve their objectives through the use of explosives.
Where does 70 percent of crashes involving cars and bicycles occur?
Driveways or intersections
Why is a 5 percent sales tax on gasoline regressive?
This is a fixed rate (proportional) tax, not a regressive tax.
If you have 50 math problems and you do 48 percent of them how many problems have you done?
24 problems
Why are rectangles still similar if you increase dimensions by 50 percent?
They are similar because their sides are proportional and their angles are equal.
2 and one half percent as a decimal?
.025 Keep in mind one percent = .01, that makes it easier to solve questions involving %'s!
What are the advantages of using A readings rather than percent T as a means of estimating microbial growth?
The density of a cell suspension is expressed as absorbance (A) rather than percent T, since A is directly proportional to the concentration of suspended cells, whereas percent T is inversely proportional to the concentration of suspended cells. Therefore, as the turbidity of a culture increases, the A increases and percent T decreases, indicating growth of the cell population in the culture.
Under a proportional system what happens if a candidate wins at least 15 percent of the primary votes?
Under a proportional system, if a candidate wins at least 15 percent of the primary votes, they are usually allocated a proportional number of seats in the legislative body based on their share of the vote. This ensures that a diverse range of voices are represented in proportion to their level of support.
A tax that requires each person to pay 3 percent regardless of income is a tax.?
proportional tax or flat tax
If kinetic energy is increased by 60 percent then momentum will be?
Kinetic energy is proportional to the square of the speed; use this fact to calculate the increase in speed (60% increase means an increase by a factor of 1.6). Momentum is proportional to the speed.
