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Vladimir79 [104]
2 years ago
5

Question Progress

Mathematics
1 answer:
Alik [6]2 years ago
4 0

Answer:

60 ; - 40 ; 22 ; - 11

Step-by-step explanation:

Given that:

Number of questions = 20

Rules :

Every correct answer scores 3 points.

Each incorrect answer loses 2 points.

A question not answered scores 0 points.

It is possible to finish the quiz with a negative score.

a)

Maximum score : answering all questions correctly :

(3 points * 20 questions)

= 3 * 20

= 60 points

b)

Minimum score is obtainable by answering all questions incorrectly ;

(-2 points * 20)

= - 40 points

c)

10 correct answers = (3 * 10) = 30 points

(14 - 10) = 4 incorrect answers = (-2 * 4) = - 8 points

Net total = 30 + (-8) = 30 - 8 = 22 points

d) Another student answers 18 questions,

5 are correct. How many points does she score?

5 correct answers = (5 * 3) = 15 points

(18 - 5) incorrect answers = (13 * - 2) = - 26 points

Net total = 15 + (-26) = - 11 points

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Answer:

Step-by-step explanation:

Usimg formula for calculating compound interest.

A = P(1+r/n)^nt

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r is the rate = 5%

t is the time = 25years

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Substituting to get the amount A.

A = 250(1+5/25)^25/4

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3 years ago
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5 0
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spayn [35]

Answer:

you can't tell

Step-by-step explanation:

we don't know what x is equal to because there is no equivalent. x here can equal anything.

4 0
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Marrrta [24]

Answer:

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Step-by-step explanation:

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