Step-by-step explanation:

<h3>Total number of students in Ms. Perron’s class is 25</h3>
<em><u>Solution:</u></em>
In Ms. Perron’s class, 40% of the students are boys
There are 10 boys in the class
Let "x" be the total number of students in Perron class
From given,
40 % of total students are boys
Therefore,
40 % of x = 10

Thus total number of students in Ms. Perron’s class is 25
Answer:
45 million
Step-by-step explanation:
Answer:
Step-by-step explanation:
In this geometry, there are three "geometric mean" relations that apply. They can be summarized by the rule ...
<em>a segment touching the hypotenuse is equal to the geometric mean of the segments of the hypotenuse it touches</em>.
For x and y, the two segments will be the short one (4 or 6, respectively) and the entire hypotenuse (4+6=10).
Using this rule, we have ...
x = √(4·10) ≈ 6.3
y = √(6·10) ≈ 7.7
z = √(4·6) ≈ 4.9
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The geometric mean of two numbers is the square root of their product.
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<em>Additional comment</em>
These relations come about because all of the right triangles in this figure are similar. That means corresponding sides are proportional.
x/10 = 4/x ⇒ x² = 40
y/10 = 6/y ⇒ y² = 60
z/6 = 4/z ⇒ z² = 24
Answer:
y = -8
Step-by-step explanation:
Instead of trying to find the slope of the line through these two points in the usual rise/run fashion, note that y does not change as we progress from x= -5 to x= +8. This tells us immediately that this line is a horizontal one: y = -8.