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
Dmitriy789 [7]
3 years ago
10

PLEASE HELP!!!!!! TIMED QUESTION!!!! FIRST CORRECT ANSWER WILL GET BRAINLIEST....PLEASE ANSWER NOW!!!!

Mathematics
1 answer:
Margarita [4]3 years ago
6 0

Answer:

Option (3)

Step-by-step explanation:

From the picture attached,

Bar graph sketched shows the grades earned by the students in an exam.

Number of students who achieved the grade A = 17

Number of students who achieved grade B = 14

Number of students with grade C = 5

Number of students with grade D = 9

Total students who took the exam = 17 + 14 + 5 + 9 = 45

Option (1)

"\frac{1}{5} of the students earned a C"

Fraction of students who earned C = \frac{\text{Students who earned C}}{\text{Total students}}

                                                          = \frac{5}{45}

                                                          = \frac{1}{9}

Therefore, this option is incorrect.

Option (2)

"3% more students earned an A then B"

Percentage of students who earned A = \frac{\text{Students got A}}{\text{Total students who took the exam}}\times 100

                                                                = \frac{17}{45}\times 100

                                                                = 37.78%

Percentage of students who earned B = \frac{\text{Students got B}}{\text{Total students who took the exam}}\times 100

                                                                = \frac{14}{45}\times 100

                                                                = 31.11%

Difference in percentage = 37.78 - 31.11

                                          = 6.67%

Therefore, this option is not correct.

Option (3)

"20% of the students earned a D"

Percentage of students who earned D = \frac{\text{Students got D}}{\text{Total students who took the exam}}\times 100

                                                                 = \frac{9}{45}\times 100

                                                                 = 20%

Option (3) is the correct option.

Option (4)

" \frac{1}{4} of the class earned a B"

Fraction of class who earned B = \frac{\text{Students got B}}{\text{Total students who took the exam}}

                                                    = \frac{14}{45}

Therefore, Option (4) is not correct.                                        

You might be interested in
4x^2-20x+25<br> Factor the quadratic completely
MissTica

Answer:

just go in your browser and use m    a    t   h  w    a    y  no spaces and should be the first one

Step-by-step explanation:

4 0
3 years ago
Condense 2log4 + log3 - log2 + log5
antiseptic1488 [7]

2\log4 + \log3 -\log2 + \log5= \\ \\ = \log 2^4+ \log3 -\log2 + \log5 = \\ \\ = \log 16+ \log3 -\log2 + \log5 = \\ \\ = \log\Big(16\cdot 3:2\cdot 5\Big) = \log\Big(\dfrac{16\cdot 3\cdot 5}{2}\Big) = \log(8\cdot 3\cdot 5) = \\ \\ =\log120

3 0
3 years ago
To make 1 1/2 dozen muffins, a recipe uses 3 1/2 cups of flour.
zimovet [89]

Answer:

the answer is 2 1/3 or There is 2\frac{11}{14}\ cups needed to make every dozen of muffins.

Step-by-step explanation:

brainly.com/question/6703040

7 0
3 years ago
This graph shows the solution to which inequality?
Butoxors [25]

Answer:

letss seeee

Step-by-step explanation:

c.

7 0
3 years ago
Verena lives in a city where the ratio of sunny days to rainy days is 4 to 3.
alexandr402 [8]

12 rainy days because 16 divided by 4 is 4. SO, 4 times 3 is 12

8 0
3 years ago
Other questions:
  • Jackie bought a game that contained a ball and 10 jacks. The ball had a radius of 2 inches. What is the volume of the ball? Roun
    14·1 answer
  • Adriana gather data and different schools winning percentages and the year average year salary of their head coaches is in milli
    6·2 answers
  • What is the ordered pair solution for this system of equation X+y=8<br> Y=x-3
    15·1 answer
  • NEED ANSWER ASAP!!! PLEASE HELP
    9·1 answer
  • Simplify 5a – (2a + 6)
    11·2 answers
  • Find the area of the circle. Write your solution in terms of and round to the nearest hundredth.
    7·1 answer
  • Angle ABC is shown . Determine sin B. Write your answer in fraction form.<br><br> Help ASAP
    8·1 answer
  • Find the difference of 5k?-7k +6 and<br> 3k - 4k+1.<br> 2
    6·1 answer
  • 6/7 divided by 12/14 please show the work
    9·2 answers
  • Pythagorean Theorem
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!