Solve the system of equations -8x-6y=58 and x-y=9

Answer:

um we cant hear the sound part so

Step-by-step explanation:

Answer:

J' (3, 2)

Step-by-step explanation:

when a point is rotated 90 degrees clockwise, the point goes from (x, y) to (y, -x). You can imagine this rule or come up with it by doing a rotation on a graph, but really it's just a rule you should memorize.

So, apply (x, y) --> (y, -x) to this point:

(-2, 3) --> (3, 2)

J' (3, 2)

Answer:

J' (3, 2)

Step-by-step explanation:

edg 2020

Answer:

The scale factor represents a proportional relationship between the scale drawing and the building’s dimensions. If the dimensions change, then the scale factor must also change to preserve the relationship.

Step-by-step explanation:

Hope it helps XD

Answer:

The scale factor represents a proportional relationship between the scale drawing and the building’s dimensions. If the dimensions change, then the scale factor must also change to preserve the relationship.

Step-by-step explanation:

Standered form: 2/(17-12)

Answer: 0.4

I hope this helped :)

Answer:

We can expect $1.7 off

Step-by-step explanation:

We are given 10 fortune cookies out of which

$1 off  = 7 cookies

$2 off = 2 cookies

$6 off = 1 cookie

Probability

A = drawing $1 off cookies    P(A) = 7/10

B= drawing $2 off cookies    P(B)  = 2/10

C= drawing $6 off cookie      P(B)  = 1/10

Expectation = 1*7/10 + 2*2/10+ 6*1/10

                    = 7/10  +   4/10  + 6/10

                    =  17/10 = $1.7 off

Answer:

24 trash cans remaining.

Step-by-step explanation:

9322 / .5 = 18644

18644/28 groups is 665 r 24

Answer:

249

Step-by-step explanation:

25+37+187=249

Answer:

x=1.4

Step-by-step explanation:

12x-15=6-3x

15x=21

x=21/15

x=1.4

12(1.4)-15=6-3(1.4)

16.8-15=6.4.2

1.8=1.8

Answer:y = -2/3x + 490

Step-by-step explanation:

2x +3y = 1470  

Slope intercept form definition: y = mx + b is the slope-intercept form of a line where m is the slope and b is the y-intercept.  

2x + 3y = 1470  

2x + 3y -2x = 1470 - 2x - Subtract 2x from both sides  

3y = 1470 - 2x - Simplify  

3y/3 = 1470/3 - 2x/3 - Divide both sides by 3  

y = -2/3x + 490 - Simplify  

-⅔ is the slope and 490 is the y-intercept

Step-by-step explanation:

Answer:

bknln

Step-by-step explanation:

-20/27

Step-by-step explanation:

Multiply the top denominators

-8•5= -40

Multiply the bottom denominators

9•6=54

So 40/54

Now simplify

-40/54 ÷ 2= -20/27

Answer:

subtract 140 from 166

Step-by-step explanation:

Answer:

4 and, 5 conclusion, 6 conjecture, 8 Conditional statement, 10 hypotheses,

11 contrapositive, 12 counterexample,

the rest i dont know srry

Answer:

Step-by-step explanation:

The question is incomplete. Here is the complete question

Ahmed is riding the elevator in a building. The building has floors above and below ground level. Ahmed uses the expression below to describe his movement. 6 + (–8) Which statement could describe Ahmed’s movement?

Given the expression

6+(-8)

Let's denote upward movement in the elevator as positive and downward movement as negative.

+6 means that Ahmed rides 6 floors above in the elevator (since +be means upward movement in the elevator)

-8 means that from that 6th floor, he then moves 8 floors downwards in the elevator. In other to determine the floor Ahmed is, we can evaluate the given expression:

= 6+(-8)

Note that -×+ = -, hence the expression becomes;

= 6-8

= -8+6

= -2

This means that Ahmed is 2 floor below or down the elevator.

Answer: He moved 6 floors up, then moved 8 floors down. So he is now 2 floors below ground level.

I hope this helps.

Answer:

$3.15

Step-by-step explanation:

For this, "x" is a multiplication symbol

Option 1: 35x1.09=38.15  (the 1.09 is how u calculate tax btw)

then 38.15-35=3.15

OR

A simpler way:

Option 2: 35x9%    (or 35x.09) however u want to put it)

=3.15

Answer:

D

Step-by-step explanation:

Trust me I used a calculator and and different one to make sure my answer was correct.

{14, 48, 50} represents a Pythagorean Triple, hence option (D) is correct.

If three sides of any triangle are a, b and c and c is the largest one then the condition that a, b and c will form a Pythagorean triplet is as:

c² = a² + b²  -----(1)

An option which will satisfy the condition (1) will form a  Pythagorean Triple.

Let's check for all the given options:

A) {10,5,12}

Since, 12 is the largest number out of three.

Therefore, c = 12, a = 5, b = 10

Now,

a² + b²  = 5²+10²

a² + b² = 25+100

a² + b² = 125

a² + b²≠ 15²

a² + b²≠ c²

Hence,  {10, 5, 12} will not form a Pythagorean Triple. Option (A) is incorrect.

B) {2,4,5)

c = 5, a = 2, b =4

a² + b² = 2²+4²

a² + b²  = 4+16

a² + b² = 20

a² + b² ≠ 5²

Hence, option (B) is also incorrect.

(C)  {1,2,3}

c = 3, a = 1, b = 2

a² + b² = 1²+2²

a² + b² = 1+4

a² + b²= 5

a² + b² ≠ c²

This is also not forming a  Pythagorean Triple, that is why incorrect.

(D) {14, 48, 50}

c = 50, a = 14, b = 48

a² + b² = (14)²+(48)²

a² + b² = 196 +2304

a² + b²  = 2500

a² + b²  = (50)²

a² + b²  = c²

This satisfies the condition (1) hence, it is forming a Pythagorean Triple.

This option is an  appropriate choice.

Hence, option (D) is correct, that means {14, 48, 50} represents a Pythagorean Triple.

Learn more about Pythagorean Triple here:

https://brainly.com/question/31900595

#SPJ6

Answer: -7

Step-by-step explanation: Hopefully this helps have a blessed day!

Answer:

The answer is -7

Step-by-step explanation:

Answer:

B x= -9

Step-by-step explanation:

if you graph x equals negative 9 you always have a vertical line

Answer: b) x = -9

a) gives you a diagonal line when you graph it

b) gives you a vertical line since you only have the x-value, and it passes through the point (-9,10) when you graph it

c) gives you a horizontal line when you graph it since you only have the y-value

Answer:

Step-by-step explanation:

you create 15 per 5 hours.  or 15 centerpieces/5 hours or 3 centerpieces per hour.  To make 42, if you make 3 per hour, you would divide 42 by 3, getting 14.  It will take 14 hours to make 42 centerpieces.

Answer: b 4.1%

Step-by-step explanation:

Answer:

dang that looks hard

Step-by-step explanation:

Answer:

Step-by-step explanation:

we're given that

[tex]W = 2X - 3\\P = 43\\[/tex]

the perimeter can be defined as

[tex]P = 2X + 2W \\so\\43 = 2X + 2(2X - 3)\\43 = 2X + 4X - 6\\6X = 49\\X = \frac{49}{6}\\ W = 2X - 3\\W = 2(49/6) - 3\\W = 49/3 - 9/3 = \frac{40}{3}[/tex]

The rectangle is

[tex]\frac{49}{6} by \frac{40}{3}[/tex] feet

Answer:

-7

Step-by-step explanation:

105=x+112

105-112=-7

Answer: m= 3/7

Step-by-step explanation: in y=mx+b form this equation is y=3/7 x + 11/7

Answer:

30

Step-by-step explanation:

Answer:

There are 30 students in his math class

Step-by-step explanation:

First you subtract the three from 123 because that three he still has. Then you take the 120 and divide it by four since thats how many pieces he gave each student. You are then left with 30 students.

Answer:

23 weeks

if he is saving 25 each week which is 7 days you multiply 25 x 23 = 575 and he will have a little extra money

Answer:

15

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

204-108/17-9

96/8

12

Answer: x = 6 or just 6

Step-by-step explanation: You do the opposite of addition, and subtract +5 and 23 to get 3x = 18, then you would divide 3x and 18 by 3 to get x = 6 or just 6.