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veronica25681
23.05.2020 •
Mathematics
Solve the equation and check the solution.
a minus 2 and one-half = 1 and one-half
A. a = 1
B. a = 3 and one-half
C. a = 4
D. a = 4 and one-half
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Ответ:
1) First, we can multiply 850 by 32% or 0.32. That gives us 272.
2) Now, we know that out of the 850 kids surveyed, only 272 like hard rock.
For Part B, since we know that 75% of the kids surveyed, which can also be known as 150 teenagers, we can solve using the following method:
1) First, we can divide 150 by 3, since we know that 75 is 3/4 of 100. That gives us 50.
2) Now we can add 50 to 150, which gives us a total of 200 students that were surveyed.
For Part C, an example in which a percentage greater than 100% could have to do with vitamin and nutrition intake, or change in world population. An example could be: the world population increased by 500% from 1804 to 1999.
I hope this helps you!