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grin007 [14]
3 years ago
8

at lake middle school, the average ratio of boys to girls in a a classroom is 3:2. use a proportion to predict the number of gir

ls in a classroom of 15 boys. how many students are in the classroom total?
Mathematics
1 answer:
Olin [163]3 years ago
3 0
I believe the answer is 10 girls I'm pretty sure it is 10 girls
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3(x - 4) + 8(x + 2).
FromTheMoon [43]
3(x - 4) + 8(x + 2) = 3x - 12 + 8x + 16 = 11x + 4
3 0
3 years ago
Point P is the incenter of triangle ABC, PZ = 7 units, and PA = 12 units.
cestrela7 [59]

The complete question is

"Point P is the incenter of triangle ABC, PZ = 7 units, and PA = 12 units.

The radius of the incircle centered at point P is ? units."

The radius of the incircle centered at point P is 7 units.

We are given that point P is the incenter of the triangle, and is the center point of the incircle of the triangle.

<h3>What is incircle?</h3>

The incircle is defined as the largest circle that can be made in a triangle and is tangent to each side of the triangle.

Here, The radius of the circle is going to be a perpendicular line from point P to any side of the triangle.

In the triangle ,

PZ = PY = PX,

Each measure of value is equal to the radius of the circle.

Therefore, we already know that PZ = 7 units making the radius, r = 7 units.

Learn more about  incircle;

brainly.com/question/24280138

#SPJ1

4 0
2 years ago
If a storm window has an area of 640 square inches, what is the equation to find the dimensions when the window is 20 inches hig
Lyrx [107]
Area = width * height
since the window is 20 inches higher than the width:
width +20 = height

640 = width * width+20
640 = width^2 +20*width
width^2 +20*width - 640 = 0
width = 17.203
**********************************************************
Double Check
if width = 17.203 then height = 37.203
area = 17.203 * 37.203 = 640 square inches Correct!!


8 0
3 years ago
Hey i need help please
Papessa [141]
 255.is the answer because of the 38 and the 48 percent of each of both the x and y and is you add then times them you get 255 as your answer
5 0
3 years ago
Can yall help me plz<br>-​
Lera25 [3.4K]

Answer:

B

Step-by-step explanation:

Because the numbers are less than 45 and more than 40

3 0
3 years ago
Read 2 more answers
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