Four a number, increased by one , is between seven and thirteen .
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Answer:
There are <u>1240</u> students who attended Washington Middle School.
Step-by-step explanation:
Given:
Students who attend Washington Middle School are either in seventh or eighth grade.
At the end of the first semester 25% of the students at Washington Middle School were on the honor roll.
Seventh graders represented 60% of the students on the honor roll.
If 124 students on the honor roll were in eighth grade.
Now, to find the students attend Washington Middle School.
Let the total number of students be
So, the students at Washington Middle School were on the honor roll:
<u><em>25% of </em></u><u><em /></u>
As, given seventh graders represented 60% of the students.
So, the students on the honor roll represented as seventh graders:
As, 124 students on the honor roll were in eighth graders.
Thus,
According to question:
<em>Multiplying both sides by 4 we get:</em>
<em>Dividing both sides by 0.4 we get:</em>
Therefore, there are 1240 students who attended Washington Middle School.
If we plot that point we find ourselves in QIV. The distance along the x axis is 4, and the distance down from that point is -3. If we create a right triangle with that segment, that segment serves as the hypotenuse of the triangle. We need its measure. Using Pythagorean's theorem, 
and 
. We see that c = 5. We need now to find the secant of that right triangle. Secant if the co-identity of cosine which is side adjacent over hypotenuse. That means that secant is the hypotenuse over the side adjacent. So our secant theta = 5/4