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
How to write 0.125 as a fraction in simplest form
hoa [83]

Answer:

0.125 = 125/1000

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Is y2 = x a function thx
Charra [1.4K]

Answer:

Nothing further can be done with this topic. Please check the expression entered or try another topic.

y2=x

Step-by-step explanation:

Hope that my answer helped. If my answer did help you then would you be kind to give me brainliest because I've been trying to rank up. If not then it's totally fine. Thanks :)

5 0
2 years ago
The ratio of pencils to erasers
Sholpan [36]
If there is 20 pencils there will be 5 erasers 20:5
6 0
3 years ago
A model of an airplane is built using the ratio of similarity 1 to 50. The airplane is 60feet long. What is the length of the mo
Whitepunk [10]

Answer:

1.2 feet long

Step-by-step explanation:

(1/50) * 60 = 1.2

6 0
3 years ago
Maria has the following numbers of books in her collection.
Ket [755]

Answer:

The average goes up by 0.6.

Step-by-step explanation:

The average of the original data set, 6,6,7,8,9 is 7.2. The average of the new data set with 3 more cookbooks 6,7,8,9,9 is 7.8. Therefore it increases by 0.6, hope that makes sense :)

7 0
2 years ago
Other questions:
  • What is the missing addend?<br> 52,835 +<br> = 87,216
    5·2 answers
  • Chloe puts 4 soaps and two bottles of lotion in each gift basket. She has 127 soaps and 85 bottles of lotion. How many gift bask
    11·1 answer
  • You paint 1/3 of a wall in 1/4 of an hour. At that rate , how long will it take you to paint one wall
    8·1 answer
  • A
    15·1 answer
  • Jeanne makes hair bows to sell at the craft fair each bow requires .5 yards of ribbon at the fabric store ribbon is sold by foot
    7·1 answer
  • A runner’s distribution of times for running 1,000 meters has a mean of 4.5 minutes with a standard deviation of 0.75 minutes. O
    11·1 answer
  • 26 points, Please help! <br><br> What is the scale factor?
    13·1 answer
  • If a=b-2x/x+c,then what is the value of x in terns of a,b &amp; c ?​
    11·1 answer
  • The number of guests, g, coming for dinner<br> is not 8
    11·1 answer
  • Smart kids help me I really reallly need to do good on this test
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!