1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
defon
3 years ago
9

in Mr. Diaz's class, 20% of the students receive a grade A on there report cards. there are 25 students in mr. diazs class. how

many students got a grade a on there report card?
Mathematics
2 answers:
Len [333]3 years ago
8 0
20 percent of the student receive an A. There are 20 student.you would multiply 25x.20 which is 20 percent.equals 5. The answer is 5 students received an A
Rainbow [258]3 years ago
3 0
Five because 2o percent of 25 equals 5
You might be interested in
A circle has a diameter with endpoints at (6, 5) and (8, 5). Write the equation for the circle.
mario62 [17]

Answer:

(x-7)^2+(y-5)^2=1

Step-by-step explanation:

The two things that are required to formulate the equation of the circle is the center coordinate and the radius of the circle!

<u>Center of the circle:</u>

  • The center of the circle always lies at the midpoint of the endpoints of its diameter: Let's call the endpoints A(6,5) and B(8,5).

Using the midpoint formula we'll get:

(x_m, y_m) = \left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)

(x_m, y_m) = \left(\dfrac{6+8}{2},\dfrac{5+5}{2}\right)

(x_m, y_m) = (7,5)

This is the center coordinate of our circle.

<u>Radius: </u>

The radius of the circle is the distance from the center of the circle to any of the endpoints of the diameter (A or B)

We can use the distance formula:

r = \sqrt{(x_1-x_2)^2+(y_1-y_2)^2}

r = \sqrt{(x_1-x_m)^2+(y_1-y_m)^2}

r = \sqrt{(6-7)^2+(5-5)^2}

r = \sqrt{1^2}

r = 1

<u>Equation of the circle: </u>

The equation is written as:

(x-a)^2+(y-b)^2=r^2

here, (a,b) are the center points of the circle

in our case this is (a,b)=(x_m,y_m)=(7,5)

and r = 1

(x-7)^2+(y-5)^2=1^2

(x-7)^2+(y-5)^2=1

This is the equation of the circle!

3 0
3 years ago
Plz help with 12<br> Will give brainliest
Irina-Kira [14]

Answer:

True, based on the <em>Transitive Property of Equality</em>.

Step-by-step explanation:

Note that the <em>Transitive Property of Equality </em>states that "If a = b, & b = c, then a = c.

In this case it is the same.

∠1 ≅ ∠2 (because both are complementary), ∠1 ≅ ∠3 (again, both are complementary), then based on the Transitive Property, ∠2 ≅ ∠3, making all of them complementary angles

------------------------------------------------------------------------------------------------------

<em>~Senpai</em>

8 0
3 years ago
Read 2 more answers
Are angles 8 and 15 <br><br> congruent <br><br> supplementary <br><br> or neither
kap26 [50]
Angles 8 and 15 are supplementary.
3 0
3 years ago
A basketball court is 94 feet by 50 feet. Eight fans ca
IgorC [24]

Answer:

The entire floor can contain approximately 4178 fans

Step-by-step explanation:

The first step is to calculate the area of the basketball floor.

we can do this by multiplying the length by the breadth as such 94 X 50 = 4700 square feet.

The second step is to calculate the area occupied by 8 of the fans. We can do this by multiplying 3 ft by 3ft = 9 square feet.

From this, it will be easier to estimate the area occupied by only one fan. This can be got by dividing 9 square feet by 8.  

This is = 1.125 square feet.

To get the number of students it can occupy, we divide the total area of the court by the area occupied by one student.

4700/ 1.125 =4177.8 \approx 4178 fans

4 0
3 years ago
I need help fast i don’t understand please give detailed explanation
alex41 [277]

Answer:

<4 = 63°

Step-by-step explanation:

32° + 31° = < 4 ( exterior angle of a triangle is equal to the sum of two opposite interior angles)

<4 = 63°

Hope it will help :)

5 0
3 years ago
Other questions:
  • after the first hour of the monsoon 23 mm precipitation has fallen after the second hour a total of 61 mm of precipitation at Fa
    9·1 answer
  • What's 2 + 1 ? this thing is making me type 20 words
    10·2 answers
  • The floor of the gazebo shown is a regular octagon. Each side of the floor is 8 feet, and the area is about 309 square feet. You
    15·1 answer
  • 3(2x+4) how do i expand it and answer pls<br>​
    8·2 answers
  • 13. Nine less than a number is no more than 8 and is no less than 3.
    8·2 answers
  • 12x + 4y = 152 32x + 12y = 420 what is y?
    6·1 answer
  • What type of property is 7+b=b+7
    14·1 answer
  • Help please..<br>I really need it​
    10·1 answer
  • Cora is saving for vacation the total cost of the vacationers $, 800.36 Cora is saving for vacation the total cost of the vacati
    6·2 answers
  • James and Bethany Morrison are celebrating their 10th anniversary by having a reception at a local reception hall. They have
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!