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
den301095 [7]
3 years ago
5

a student has answered 82% of the questions correctly in the examination. He made mistakes in 9 questions Calculate the toltal n

umber of questions in the examination​
Mathematics
1 answer:
Sonja [21]3 years ago
5 0

Answer:

There is a total 50 questions.

Step-by-step explanation:

Let x = total questions in the exam

Since 82% of the test was scored correctly, that means 18% of the student's exam was scored incorrectly.

With this information we can write:

18\%x=9 (Given that the student made 9 mistakes)

x=9\div18\% (divide 18% on both sides)

x=50

∴ There was a total of 50 questions in the examination.

You might be interested in
9+4 to the power of 3 times(20-8) divided 2+6
Aliun [14]

Answer: 3,295.5

Step-by-step explanation:

7 0
3 years ago
The quadrilateral ABCD is a rhombus with diagonals AC = 12 ft and BD = 4 ft. The points M and N divide diagonal AC on three equa
victus00 [196]

Answer:

area of BMDN 8 ft²

Step-by-step explanation:

In BMDN the diagonals are BD and MN.

MN is 12/3 = 4 ft long, and BD = 4 ft.

A rhombus with equal diagonals is a square, so BMDN is a square.

In the right triangle BDN, the diagonal BD is the hypotenuse, then:

DN² + NB² = BD²

but DN = NB, then:

2*DN² = 16 ft²

DN² = 8 ft²

The area of BMDN is computed as one of its sides squared. Then, DN² is its area

8 0
3 years ago
Rita ran 5 miles in 48 minutes what was her time per mile
Free_Kalibri [48]
9.60 minutes per mile
8 0
3 years ago
Read 2 more answers
Eathan ran 11 miles in 2 hours. what is the unit rate of miles to hours
spayn [35]

Answer:

5.5:1

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
NEED ASAP
netineya [11]

Answer:

Supplementary

Step-by-step explanation:

135+45 =180

So Option C

3 0
3 years ago
Other questions:
  • Diego's club earns money for charity when members of the club perform community service after school,
    11·1 answer
  • It should take 5.22 minutes to clean a shower. You have 5 showers that need to be cleaned. How many minutes should it take for y
    8·2 answers
  • A local drive in theatre sells entrance tickets for cars on weekends night. at capacity , the drive in can hold 72 cars . the fu
    14·2 answers
  • How many 1/4litre packets of milk can be filled from a container holding 5 litres ?
    11·1 answer
  • From a class of twenty students, how many different ways can the 1 , 2 , and 3rd students be chosen?
    7·1 answer
  • Mike ran 2 km in 13 minutes.  If he continues at this same pace, how long will it take Mike to run 7 km?  Round your answer to t
    14·1 answer
  • Please help! quick! Thanks!
    8·2 answers
  • Please help me solve this question will give you braisnlt !
    12·1 answer
  • Jake buys a car for $1500 and sells it for $1800. What is Jake’s percentage profit?
    14·1 answer
  • BRAINLIEST!!!!!<br> ANSWER THE QUESTIONS!!!
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!