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3 years ago

Math help please will mark brainliest

Mathematics

1 answer:

Musya8 [376]3 years ago

3 0

Answer:

answer: positive 3

Step-by-step explanation:

when x=-2 y=3

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Solve the equation below

Agata [3.3K]

Set up the equation:

4(8.75x-2)=97
35x-8 =97
35x =97+8
35x =105
x. =3

The value of x is 3.

7 0

2 years ago

In a test (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer . Roy answered all t

katovenus [111]

Answer:

20 questions

Step-by-step explanation:

Given

$Correct \Marks= +5$

$Incorrect\ Marks= -2$

$Score\ Obtained = 30$

$Number\ of\ correct\ answers = 10$

Required

Number of questions answered

First, we need to get the total correct marks obtained by Roy

This is calculated by multiplying the correct marks by number of correct answers

$Total = +5 * 10$

$Total = +50\ marks$

Subtract this from the total scores obtained; This gives the total incorrect answer obtained by Roy

$Incorrect = Scores\ Obtained - Total$

$Incorrect = 30 - (+50)$

Open bracket

$Incorrect = 30 - 50$

$Incorrect = -20$

Divide this by -2 to get the number of incorrect answers

$Incorrect\ Answers = \frac{-20}{-2}$

$Incorrect\ Answers = 10$

Add this to the number of correct answers to give the total number of question answered

$Total = Correct\ Answers + Incorrect\ Answers$

$Total = 10 + 10$

$Total = 20$

<em>Hence, Roy answered a total of 20 questions</em>

3 0

3 years ago

Find an expression which represents the difference when (9x−6) is subtracted from (6x+7) in simplest terms.

evablogger [386]

Answer:

3x + 1

Step-by-step explanation:

9x -6 -6x +7

9x-6x -6 +7

3x +1

8 0

3 years ago

Answer correct please

natita [175]

Answer:

correct

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Which expression is the factored form of -4.5n+3?

TEA [102]

The right ans is D.I am 100%sure.

if my ans was gelpful u can follow me.

5 0

3 years ago