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DENIUS [597]
3 years ago
7

In a class test containing 10 questions, 5 marks are awarded for every correct answer and (−2) marks are awarded for every incor

rect answer and 0 for questions not attempted.
Heena gets two correct and five incorrect answers out of seven questions she attempts. What is her score?
Mathematics
2 answers:
expeople1 [14]3 years ago
8 0

Answer:

Heena gets 2 correct and 5 incorrect. She attempts only 7 questions so for the remaining 3 questions she will score zero marks.

So total marks scored by Heena is 5×2−5×2+0  i.e 0marks

Step-by-step explanation:

e-lub [12.9K]3 years ago
4 0

Answer:

0 points

Step-by-step explanation:

So first we see that she gets 2 questions correct,

2 * 5 = 10

Then we see that she gets 5 questions wrong,

5 * -2 = -10

Then we see that she doesn't attempt three questions,

3 * 0 = 0;

Now we add up the points,

10 - 10 + 0 = 0 points

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Construct 3 linear equation starting with qiven solution z = 1/3
Andreyy89

Answer:

(a)9z+2=5

(b)21z-11=-4

(c)4z=2-2z

Step-by-step explanation:

We are required to construct 3 linear equations starting with the given solution z = 1/3.

<u>Equation 1</u>

<u />z=\frac{1}{3}<u />

Multiply both sides by 9

9z=\frac{1}{3}\times 9\\9z=3

Rewrite 3 as 5-2

9z=5-2

Add 2 to both sides

Our first equation is: 9z+2=5

<u>Equation 2</u>

<u />z=\frac{1}{3}<u />

Multiply both sides by 21

21z=\frac{1}{3}\times 21\\21z=7

Rewrite 7 as 11-4

21z=11-4

Subtract 11 from both sides

Our second equation is: 21z-11=-4

<u>Equation 3</u>

<u />z=\frac{1}{3}<u />

Multiply both sides by 6

6z=\frac{1}{3}\times 6\\6z=2

Rewrite 6z as 4z+2z

4z+2z=2

Subtract 2z from both sides

Our third equation is: 4z=2-2z

4 0
3 years ago
Use the figure to find the measures of the numbered angles.
Agata [3.3K]

Answer:

im so sorry idk

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Ryan made $272 for 17 hours of work. At the same rate, how much would he make for 11 hours of work?
charle [14.2K]

Answer:

$176

Step-by-step explanation:

272 / 17 = 16

16 * 11 = 176

8 0
3 years ago
Read 2 more answers
The expression 16^-3/4 is equivalent to what expression
ivann1987 [24]

Answer:

1/8.

Step-by-step explanation:

16^-3/4

=  (⁴√16)^-3

= 2^(-3)

= 1 / 2^3

= 1/8.

8 0
3 years ago
Peter won £75 as a prize.He gave 4/5 of the prize money as a present to Roger and Bethan.Roger and Bethan shared the present in
Molodets [167]
Roger: $24
Bethan: $36

Explanation:
4/5 of $75 is $60

So $60 is distributed to Roger and Bethan in the ratio 2 : 3.

Add the numbers in the ratio 2 : 3
2 + 3 = 5

Divide $60 by 5
60 ÷ 5 = 12

Multiply each number in the ratio 2 : 3 by 12:
2 • 12 : 3 • 12
= 24 : 36

I’m sorry if I explained this badly
But if my answer was correct, brainliest please!
Have a nice day!
-SpaceMarsh :D
7 0
2 years ago
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