Mathematics High School

Mr. Lenny has graded 25% of his 200 students papers. How many papers did he finish
grading?
A
50
B.
60
с
25
D
300

Answers

Answer 1

Answer:

50 papers

Step-by-step explanation:

50% of the 200 papers would be 100 papers graded because half of 200 is 100.

25% would be 1/4 of the 200 papers.

So you have to divide.

200 divided by 4 is 50.

Therefore 50 papers have been graded so far.

Related Questions

Simplify

-3(y+4)+4y

Please ANSWER FAST!!!!!

Answers

Answer: y-12

Step-by-step explanation:

-3(y+4)+4y

first distribute teh -3 to the y and the 4, so you get -3y and -12. Then combine like terms. -3y-12+4y, add the -3y and 4y, you get y. So the answer is y-12.

Answer:

y = 12

Step-by-step explanation:

here's your solution

=> -3(y + 4) + 4y = 0

=> -3y -12 +4y = 0

=> y -12 = 0

=> y = 12

hope it helps

the function f of x equals negative (x - 3 in the presidency squared plus sine can be used to represent the area of a rectangle with a perimeter of 12 units as a function of the length of the rectangle x what is the maximum area of the rectangle​

Answers

Answer:

Step-by-step explanation:

Ft

Kala deposits $7000 into an account that pays simple Interest at a rate of 4% per year How much interest will she be paid in the first 4 years?

Answers

Kala want get paid $1120 in the four years

At a school, there are 526 students and 263 are girls. About how likely is it that a randomly chosen student will be a boy?

◯ unlikely
◯ somewhat likely
◯ very likely
◯ equally as likely as unlikely

Answers

-> equally as likely as unlikely
It‘s 50/50

what is 11 times 1/5

Answers

Answer:

the answer is 2.2

Step-by-step explanation:

I used a calculator

Answer:

2 1/5 I guess

Step-by-step explanation:

If it's wrong then my phone's stu.pid

use mathematical induction to prove the statement is true for all positive integers n. 6 + 12 + 18 + ... + 6n = 3n(n + 1)​

Answers

Answer:

Step-by-step explanation:

6+12+18+....6n=3n(n+1)

Proof by induction

True for n = 1

6 = 3(1)(1+1)

Assume true for n = k

6+12+18+....6k=3k(k+1)

Then show that

6+12+18+....6(k+1)= 3(k+1)(k+1+1)

We add 6(k+1) to both sides of

6+12+18+....6k=3k(k+1)

6+12+18+....6k +6(k+1) =3k(k+1) + 6(k+1)

= 3(k+1)(k + 2)

= 3(k+1)(k+1+1)

So true for n = k+1

Since true for n=1 it is true for n=2,3,...

Thus true for all natural numbers n by mathematical induction

What is the slope of the line that contains these points? x=9,13,17,21 and y =-24,-21,-18,-15

Answers

Slope: 3/4
...................

help please, find the value of x

Answers

use pythagorean theorem a2 (one side)+ b2 (the other side) = c2 the hypotenuse, so a2+b2=c2

Answer:

1. 12.20

2.8.9

3.31.4

4.13.9

5. 21.93

6. some of it is cut off.

Step-by-step explanation:

a^2+b^2=c^2

please please please helpppp

Answers

840 in 2 hours is the answer

PLEASE HELP ASAP please.

Answers

Answer:

C x>3

Step-by-step explanation:

Answer:

The answer is (C) x>3

Step-by-step explanation:

Well first just solve it normally like an equation, ignore the sign for now.

-5x+20<5

Isolate the x so we subtract 20 on both sides

-5x<-15

Now divide by -5 to isolate 5 from X

x>3

You switch the sign because whenever you divide or multiply a negative number to isolate x, the sign reverses.

Classify the triangle by its sides:
17 cm, 5 cm, 13 cm?

Answers

Answer:

13 cm i think.

Step-by-step explanation:

AB is the diameter of the circle shown. The radius is 8.5 cm, and AC = 8 cm. Find the following values using the visual given below.

Answers

Its 3.56 radios the warriors were killed and the one second one was the warriors and yo

Match the word to its description.

Answers

The most frequent value = mode

The middle value = median

The average = mean

The difference between the lowest and highest value = range

Answer:

Mode is the most frequent value

Mean is the average

Median Is the middle value

Range is the difference between etc...

Each side of a square piece of plastic is 2 centimeters long. What is the piece of plastic's area?

Answers

Answer:

4cm because area is length times width

Step-by-step explanation:

Answer:

4 cm2

Step-by-step explanation:

[tex]area = side {}^{2} = (2cm) {}^{2} = 4cm {}^{2} [/tex]

please tell me what this answer is

Answers

Please like this I need pts

Find the equation of the line below.
(3,1)

Answers

Answer:

B

Step-by-step explanation:

the answer is B.the equation of the line

Whats the answer for number 12? Thank you!

Answers

It should be B correct me if I'm wrong but it should be B.

Чx-2(x+4)=22


How do I do this

Answers

Answer:

x = 7

Step-by-step explanation:

4x - 2(x + 4) = 22

Distribute:

4x - 2x - 8 = 22

Combine like terms:

2x - 8 = 22

Simplify and solve:

2x = 14

x = 7

Answer:

4x-2x-8=22

2x-8=22

2x=30

x=15

Can someone help me with this. Will Mark brainliest.

Answers

Answer: ur answer would be (1,5)

Step-by-step explanation:

Hope this helps! Have a good day! :)

I NEED HELP!!! ASAP!
The image of point (2,1) under a rotation -540 degrees about the origin is:

a. (-1,2)
b. (-2,-1)
c. (1,2)
d. (2,1)
e. none of the above

Answers

I think the correct answer is B.

Please help me with this equation! First person to answer correctly will get Brainliest!!!​

Answers

Answer:

1. 4 and 3/5

2. 3 and 1/6

Step-by-step explanation:

thats about it

Answer:

1. 4 3/5 or 4.6   2.  3 1/6

Step-by-step explanation:

Please help me! I’m giving brainliest to whoever is right first

Answers

Answer:

y = 10

x = 17

Step-by-step explanation:

4y - 3 = 37

4y = 37 + 3

4y = 40

y = 40 / 4

y = 10

3x - 9 = 42

3x = 42 + 9

3x = 51

x = 51 / 3

x = 17

Hope that helps!

Answer:

x = 17

y = 10

Step-by-step explanation:

Parallel sides are equal in length, so set them equal to each other.

3x - 9 = 42 --> Add 9 to both sides.

3x = 51 --> Divide both sides by 3.

x = 17

4y - 3 = 37 --> Add 3 to both sides.

4y = 40 --> Divide both sides by 4.

y = 10

Determine the measure of the vertical angle. Find x. Step by step ? If not that’s fine.

Answers

Answer:

x=60

Step-by-step explanation:

125=2x+5

125-5=120

120÷2=60

x=60

Anthony babysits on the weekend to earn extra cash. He charges an initial fee of $5.00,
and charges $9.00 per hour. If he earned $59.00 in one night, how many hours did he
babysit?

Answers

Answer:

6

Step-by-step explanation:

First subtract the fixed fee. 59-5=54

Divide 54 by 9.  

6

I need help finding the area of a figure, it has 15ft of heigh on the left side, 20ft wide, and it's 20ft tall on the right side.

Answers

Answer:  6000ft2

Step-by-step explanation: Multiply 15*20*20 to find the area of a figure.

6,000 ft. Is the answer. Get it by 15 times 20 times 20

through: (1, 2), parallel to y = 3x + 1

Answers

Answer:

Step-by-step explanation:

so just use the slope of the equations    m = 3   and plug in your points

to the point-slope formula  

y-2=3(x-1)

y = 3x-3+2

y = 3x -1

now you have an equation that gives you a parallel line to the first,  but moved down by 2  :)

Laura wants to cover a box with fabric:
- the box is in the shape of a rectangle prism.
- it measures 15 in. Long , 11 in wide , 24 in tall.

Answers

Answer:

1,578

Step-by-step explanation:

I took the test

Please help I only have one try. I don't get it because when I plug in the pairs, all of them are not true.

Answers

Answer:

The answer would be the third one (12,0)

ABC is dilated by a scale factor of 1/2 to produce A’B’C’. What is A’B, the length AB after the dilation? What is the measure of

Answers

...It's A on Ap3x......

Find the exact value of each variable.

x=
y=
z=

Answers

x = 12 SQRT2

y = 12

z = 12 SQRT3

Step-by-step explanation:

hope it helps

have a great day!!

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