A student took a system of equations, multiplied the first equation by 2 and the second equation by 3, then added the results together. Based on this, she concluded that there were no solutions. Which system of equations could she have started with?

1) 2x-4y=6
3x+6y=9

2) 3x+y=12
-3x+6y=6

3) -2x+4y=4
-3x+6y=6

4) 3x+6y=9
-2x-4y=4

Answer:

Answer vary:

1/3 into a decimal = 0.3

Step-by-step explanation:

honestly in my opinion that my answer.

all you do to find it out is divide 1 to 3, so it’s pretty simple. and the dash between 1 and 3 in fractions means divide so yea that’s all you need to do.

Answer:

1 mile = 0.2 hours

Step-by-step explanation:

Given that,

Eddie can travel 20 miles in 4 hours.

We need to find how many hours does it take Eddie to travel 1 mile.

20 mile = 4 hours

1 mile = (4/20) hours

= 0.2 hours

So, to travel 1 mile will take 0.2 hours.

Answer:

140 minutes

Step-by-step explanation:

If it takes him 30 mins to plant three, then 30 divided into three equal groups is 10. Then we multiply 14 and 10 together since it takes Andre ten minutes to plant each sapling. This means  that the 14 saplings takes ten minutes EACH to plant.

Answer: 140

Step-by-step explanation:

i got it right

Answer:

true

Step-by-step explanation:

because angle 1 and 2 can only be equal if the lines are parallel

it is a kid ok there bye bye

12inches including the history bonus make sure to include the politics

Answer:

(5,10)

Step-by-step explanation:

(3,-7) is nowhere near the line

(2,1) you can find and see it isn't on the line

(4,2) you can find and see it isn't on the line

The only ordered pair left is (5,10)

Hope this helps. Have a great day!

:)

Answer:

y= -1/3x +5

Step-by-step explanation:

Using the equation y=mx+b

you know m (slope), which is -1/3

you also know your b which is 5

You get y= -1/3x+5

Answer:

150

Step-by-step explanation:

Answer: x would be 1/8 and y would be -36

Step-by-step explanation:

To find put y you would plug in -6 for x. So it would be y=8(-6)+12. Then you multiply the 8 and -6 to get -48, y=-48+12. Then subtract 48 from 12 and that is -36 so y=-36. To solve for x you would plug in the y or 13 into the equation. So, 13=8x+12. Then you would have to solve. 12 minus 13 is 1 and the you are left with 1=8x then you divide 1/8 and 8x/8 and you get x=1/8. Hope this helped!

Answer:

negative 7 is first then comes 2.  negative 9 is first then comes 8.

Step-by-step explanation:

Answer:

6.3

Step-by-step explanation:

Answer:

-8xy

Step-by-step explanation:

Answer:

−26xy+9x+9y

Step-by-step explanation:

Let's simplify step-by-step.

(−9x)(y)+9x−17xy+9y

=−9xy+9x+−17xy+9y

Combine Like Terms:

=−9xy+9x+−17xy+9y

=(−9xy+−17xy)+(9x)+(9y)

=−26xy+9x+9y

Answer:

C.) 5 kilograms

Step-by-step explanation:

1000 grams = 1 kilogram

To convert grams to kilograms we divide by 1000

5000g divided by 1000 kg = 5kg

May I Please Have Brainliest I'm trying to achieve a new rank

5,000 grams is equal to 5,000/1000 = 5 kilograms. The correct option is C

A unit of measurement used to describe mass or weight is the kilogram (kg). It is widely used all over the world to measure an object's weight because it is the International System of Units' (SI) fundamental unit of mass.

To convert grams to kilograms, you divide the number of grams by 1000 since there are 1000 grams in one kilogram.

So, 5,000 grams is equal to 5,000/1000 = 5 kilograms.

Therefore, the correct option is C. 5 kilograms.

Learn more about kilograms here : brainly.com/question/29255021

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Answer:

35 = 5 + 10x

Step-by-step explanation:

x = the ticket price.

Each ticket was $3

hope this helps :)

(35 - 5)/10 = 3 because She paid 35 all together + 5$ was for parking, we can subtract that. Then 30/10 is equal to 3 so she spent 3 dollars for each ticket

Answer:

(a) Irrational

(b) Irrational

Step-by-step explanation:

Given (Missing Operations):

[tex]m * x[/tex]

[tex]n * y[/tex]

The options are:

Rational             Irrational

(a) [tex]m * x[/tex]

m is a rational number while x is an irrational number.

And we know that:

[tex]rational * irrational = irrational[/tex]

Hence:

[tex]m * x = Irrational[/tex]

(b) [tex]n * y[/tex]

n is a rational number while y is an irrational number.

And we know that:

[tex]rational * irrational = irrational[/tex]

Hence:

[tex]n * y = Irrational[/tex]

Answer:

C

Step-by-step explanation:

Answer: 71

Step-by-step explanation:

Answer: it’s 4:5

Step-by-step explanation:

When you multiply or divide both sides of an inequality by a negative, you must switch the direction of the inequality sign. Please give this idea of your full attention. Even the most advanced algebra students will sometimes forget to switch the direction of the inequality sign when multiplying or dividing both sides of an inequality by a negative.

Answer:

1. 5x = 10

5x-1 = 9

2. 5x = 50

5x-1 = 49

3. 5x = 60

5x-1 = 59

4. x = 5

5x-1 = 24

5. x = 7

5x = 35

6. x = 20

5x = 100

Step-by-step explanation:

substitution x in each one

for example

x = 2

5x = 5×2 (×2 because x = 2)

so, 5x = 10

about question number 4

5x=25

x = 25÷5 (change side change mark)

x = 5

questions that I don't show you how to think

let's get it by yourself

change side change mark. it's mean

if in equation is plus change to minus

if in equation is minus change to plus

if in equation is divided by change to multiply

if in equation is multiply change to divide by

hope it helps you ☺️

Answer:

You need to look at the value of x which is already given and insert it into the other values

Step-by-step explanation:

fore example

                                        if x=2                  

then        5x                                       5x-1

              5(2)                                     5(2)-1

            = 10                                       10-1

                                                          =9                                                          

(you put the value of x where x is supposed to be, since x was 2 I replace it with 2 and got the answer).

where we have value of 5x which is 25 we will substitute to get value of x.

5x= 25

x= 25/5

x= 5

Now we have the value of x

Where we have the last value we will substitute it like

5x-1= 34

5x= 34+1

5x= 35

x= 35/5

x= 7

Now we have value of x

Answer:

x=4

Step-by-step explanation:

Answer:

1. 25

2. 3 hours

3. from 10:00 am to 10:30 am because he went 10 miles in 30 minutes

Step-by-step explanation:

Answer:

2 4/7

Step-by-step explanation:

Answer:

2.04

Step-by-step explanation:

basically you want to do

4.08

     2

2.04

just divide 8 by 2 which equals 4 and then 0 divided by 2 isnt anything so you do 4 divided by 2 equals 2.

hope this helps!!

Answer:

9,999,995

Step-by-step explanation:

Answer:

36 unit

Step-by-step explanation:

1 dozen= 12 units

3 dozen = 12 × 3 = 36 units