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
ella [17]
3 years ago
6

15. In a class test, 3 marks are awarded for every correct answer and (-2) marks are awarded for every incorrect answer and no m

ark for not attempting any question.
i) Rita scored 20 marks. If she has got 12 correct answers, how many questions has
she attempted incorrectly?
ii) Savita scored (-5) marks though she has got 7 correct answers. How many questions
has she attempted incorrectly?
Mathematics
1 answer:
Galina-37 [17]3 years ago
5 0

To Solve this, you need to take 3 the number awarded for correct, and multiply that by 12 the number of correct. Which gets you 36. Then yoou need to find the difference between20 and 36 which gives 16. Then youu need to divide that by 2 to get your ansewr of 8 in 1. Follow the same procces for ii.

i:8

You might be interested in
Will mark brainliest
TEA [102]

Answer:

The width is 2.

Step-by-step explanation:

The equation is 2 x 3 x ? = 12.

It is 2 long

It is 3 in height

2 x 3 = 6

6 x 2 = 12

so 2 is the width.

5 0
2 years ago
How many seconds are in 45 minutes?
fgiga [73]
45 minutes equal to 2700 seconds.
8 0
3 years ago
Read 2 more answers
84 + 46 + 94 - 66 + 75 + 72 - 58 + 21 =equal what??​
Solnce55 [7]
268. Just woke up though but I know it’s right
8 0
2 years ago
The vertex angle of an isoceles triangle is 8 times the measure of the base angle. find the measure of the base angle
Yuki888 [10]
For this problem, if we used b to represent your base angle measurement, you would add 8b+2b and set it equal to 180. This is because the measure of the vertex angle is 8 times the base angle measurement, so we had to multiply b by 8. We also had to add it to the other angle measures, so the other angle measures are represented as 2b since they are the same length. We then have to set this equal to 180 since that measures of a triangle must add up to 180. Then we combine like terms on our “b” side to get 10b=180. Then we divide both sides by 10 and we get b=18, which is the measure of our base angle.
4 0
2 years ago
Show different ways you can group two factors in 3 x 2 x 7
Aleks04 [339]

Answer:

75

Step-by-step explanation:

hi

7 0
2 years ago
Other questions:
  • you bake a dessert in the baking pan shown. you cut the dessert into cube shaped pieces of equal size. each piece has a volume o
    11·1 answer
  • In right triangle ABC with the right angle at C, sin A= 2x + .1 and cos B = 4x - .7. Determine and state the vaule of x.
    12·1 answer
  • Is triangle TAG ~ BAG? If so, identify the similarity postulate or theorem that applies.
    10·3 answers
  • What's the answer??? idk ......
    7·2 answers
  • What type of correlation is suggested by the scatter plot?
    8·1 answer
  • Sorry for posting a bunch I need to pass this math test
    6·1 answer
  • What is the result when the number 64 is decreased by 4.1%? Round your answer to the nearest tenth.
    12·2 answers
  • Joanna has a big paper due. Yesterday, she started typing her hand-written draft. She typed 861 words of it and saved her work t
    11·1 answer
  • Which graph represents the function y = cos(4x)?
    12·1 answer
  • Betsy has 9 3/5 pounds of dog food left to feed 12 dogs. How many pounds of food will each dog receive if all share an equal amo
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!