MATHEMATICS MIDDLE SCHOOL

What is the slope of the graph of 8x – 4y = 11?A. 2


B. 1/2


C. -2


D. -1/2

Answers

Answer 1
Answer: y = mx + b
where m is the gradient (slope)
-4y = 11 - 8x
4y = 8x - 11
y = 2x - 11/4
m = 2

The correct answer is A.

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I need help with question 3 a,b,c,d pleaseeee pleaseee

Answers

Hope this helps some

What’s the answer to this question

Answers

Answer:

The length is 65 cm and the width is 12 cm

Step-by-step explanation:

A = lw = 780

P = 2 (l+w) = 154

The length is 5 more than 5 times the width

l=5w+5

P = 2 (l+w) = 154

Divide each side by 2

2 /2 (l+w) = 154/2

l+w = 77

Substituting l = 5w+5

5w+5 +w = 77

6w+5 = 77

Subtract 5 from each side

6w +5-5 = 77-5

6w = 72

Divide each side by 6

6w/6 = 72/6

w = 12

Now lets find l

l = 5w+5

l = 5(12)+5

l = 60+5

l = 65

ABO please help brailest I promise Help me please I beg you !

Answers

I'm just going to give the answers snce so many questions

1. 2
2. 2/(m^2)
3. 1/(16x^8)
4. 3x^4
steps one: the one that starts with squareing both sides (√5x-9)^2=4^2)
23. x=9
24. 0
last graph one: third one (one that starts at 2 up from the origin)
that is all the work and how you do it step by step

Marna is playing a game where you score -5 points each time you guess the correct answer. the goal is to get the lowest score. to win the game, marna must have a score of less than -80 points. how many correct answers does mama need to win the game?create an inequality for this

Answers

Answer: Marna has to answer more than 16 answers to win the game.


Step-by-step explanation:

Le 'x' be the number of correct answers.

If Marna is getting -5 points each time she guess the correct answer.

Then the total points she get after x correct answers= -5x

If to win the game, Marna  must have a score of less than -80 points.

⇒-5x<-80

If we multiply (-1) on both sides the inequality will reverse

5x>80

Divide both sides by 5, we get

x>16

Marna has to answer more than 16 answers to win the game.

What is 10 = -9/2x - 7 - 3/2x
A = -17/6
B = -1/2
C = 17
D = 17/6

Answers

Answer:

x= -17/6

Step-by-step explanation:

10=-9/2x-7-3/2x

multiply all by 2

20=-9x-14-3x

add -9x to -3x

20=-12x-14

replace 20 with -12x and put -12x as a positive

12x=-14-20

add -14 to -20

12x=-34

divide both sides by 12

x= -17/6

a sum of RS 500 is in the form of denominators of RS5 & RS 10..if the total no. of notes is 90 ,find the no. of notes of each type................                                                                              do it by process will be mark as best

Answers

let rs.5 denominations be x , then rs 10 denominations will be 90-x

then total amount 5x + 10(90-x) which is rs.500

 5x + 10(90-x) = 500

900 - 5x = 500
400 = 5x
therefore x = 80
          therefore no. of rs.5 is 80
no. of rs.10 is 90-x = 90-80 = 10
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