A study at a major university concluded that many students are cheating
2 answers:
Right Answer: 1500
We know that 675 of the students surveyed said they cheated in 1 to 7 courses, and this represents 45% of the total students that participated in the survey, as shown in the graph.
If we want to know the total students surveyed (100%) we can use the Rule of Three as follows:
if 45% represents -----675 students
100% represents--------X students
or
45% -----675 students
100% --------X students
And this is solved in the following way:
Finally:
X=1500>>>>>This is the total amount of students surveyed or the 100%
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Answer:
Step-by-step explanation:
we know that
The simple interest formula is equal to
where
I is the Final Interest Value
P is the Principal amount of money to be invested
r is the rate of interest
t is Number of Time Periods
in this problem we have
substitute in the formula above
solve for t
Answer:
No, it is not a right triangle.
Step-by-step explanation:
Given:
The sides of the triangle = 15 10 and 7
To Find:
Whether the triangle is a right triangle = ?
Solution:
According to Pythagorean theorem , In an right triangle the the sum of the squares of the two smaller sides must equal to the square of the larger side
where
a and b are the smaller sides
c is the larger side
Now from the given data, lets assume
a = 10 and b =7 and c =15
Substituting in the above equation we get,
100 + 49 = 225
149 = 225
So, the given triangle is not a right triangle.