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qwelly [4]
3 years ago
5

In a competitive examination negative marks of 2 are awarded for each wrong answers and 4 marks for every correct answer. If nee

rav gets 15 correct answers and 5 wrong answers and rajan gets 14 correct answers and no wrong answers, who gets more marks and by how much?
Mathematics
1 answer:
Alex777 [14]3 years ago
3 0

9514 1404 393

Answer:

  Rajan gets 6 marks more

Step-by-step explanation:

Neerav's marks are (15)(4) +(5)(-2) = 60 -10 = 50.

Rajan's marks are (14)(4) = 56.

Rajan gets 6 more marks than Neerav.

You might be interested in
4. How fast was a driver going if the car left skid marks that were 32 feet long on dry concrete? (The coefficient of friction i
Monica [59]

Answer:

v_{o} \approx 31.247\,mph

Step-by-step explanation:

The deceleration experimented by the car is the product of kinetic coefficient of friction and gravitational constant:

a = \mu_{k}\cdot g

a = (1.02)\cdot \left(32.174\,\frac{ft}{s^{2}} \right)

a = 32.817\,\frac{ft}{s^{2}}

The initial speed is computed from the following kinematic expression:

v^{2} = v_{o}^{2} - 2\cdot a \cdot \Delta s

v_{o} = \sqrt{v^{2}+2\cdot a\cdot \Delta s}

v_{o} = \sqrt{\left(0\,\frac{ft}{s} \right)^{2}+2\cdot \left(32.817\,\frac{ft}{s^{2}} \right)\cdot (32\,ft)}

v_{o}\approx 45.829\,\frac{ft}{s}

v_{o} \approx 31.247\,mph

8 0
3 years ago
A rettangle is 10 inches smaller than it is wide. The perimeter of the
meriva

Answer:

A. Width = 25   Length = 15

Step-by-step explanation:

Length = L = Width - 10

Width = W

Perimeter of a rectangle

=> 2 (L + B) = 80

=> 2 (W - 10 + W) = 80

=> 2 (2W - 10) = 80

=> 4W -20 = 80

=> 4W -20 + 20 = 80 + 20

=> 4W = 100

=> 4W/4 = 100/4

=> W = 25

Width = 25

Length = 25 - 10 = 15

So, the answer is A.

6 0
3 years ago
Brainliest question please help please help me solve all the two problems please
alexgriva [62]

Answer:

(-1,5)

Step-by-step explanation:

up the x corridor and down the y axis.

4 0
3 years ago
I don’t know this question? Can you pls answer it...
vladimir2022 [97]

Answer:

12i

Step-by-step explanation:

be careful with your screenshots and make sure it doesnt show your name

3 0
3 years ago
Please answer this question only if you know it!
rusak2 [61]

i believe that the answer is b (but it could be c) pls consider what the other person that answers it says

6 0
3 years ago
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