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ollegr [7]
3 years ago
9

In order to solve the system of linear equations, the coefficients of one of the variables must be the same number but opposite

signs. Choose a variable to eliminate by multiplication and /or addition. In complete sentences,tell which variable you would choose to eliminate first, and explain why you chose that variable. In detail, explain the steps you took in order to eliminate the first variable and solve for the second variable.
2x+3y=6
5x+2y=4
Complete your work in the space provided or upload a file that can display math symbols if your work requires it
Mathematics
1 answer:
Mashutka [201]3 years ago
8 0

Answer:

Step-by-step explanation:

because both equations do not have matching numbers for the x or y variable, and both equations are positive you are going to have to multiply each equation by a number  so that there will be at least one variable with the same number but with opposite signs.

it does not matter which variable you choose.

lets use y because 2 and 3 are smaller then 2 and 5.

so lets multiply the first equation by 2 in order to get y equal to 6.

2(2x)+2(3y)=(2)6

(do not forget to multiply what the equation is equal to also)

4x+6y=12

now for the second equation we need y to equal negative 6

-3(5x)+-3(2y)=-3(4)

-15x-6y=-12

now lets put the 2 new equations next to each other and see what we can cancel out

4x+6y=12

-15x-6y=-12

-11x=0

x=0

now plug 0 in for x and solve for y (it does not matter which of the 4 equations you choose to solve.

2(0)+3y=6

3y=6

y=2

so your answer is x=0, y=2

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London Heathrow airport see on average 191,200 passengers a day how many passengers is this per minute. I need to show the steps
maw [93]
First you have to ask, how many minutes are in a day?
There are 60 minutes in a hour, and 24 hours a day. You would multiply these two to find how many minutes are in a day.

24×60=1440 minutes in a day.

Now to find how many passages a minute, divide the total number of passangers, by the number of minutes.
191,200÷1440=132.7778

Even though the 7 is bigger than a 5, you do not round up because it doesn't count as a full person.
132 people a minute is your answer.
7 0
4 years ago
Tim is playing a game. His score in round 1 is 1.7 points, in round 2 is 5.1 points, in round 3 is 15.3 points, and it continues
tatiyna

The recursive definition for the geometric sequence is given as follows:

a_n = 3a_{n-1}, a_1 = 1.7

<h3>What is a geometric sequence?</h3>

A geometric sequence is a sequence in which the result of the division of consecutive terms is always the same, called common ratio q.

The nth term of a geometric sequence is given by:

a_n = a_1q^{n-1}

In which a_1 is the first term.

The recursive definition of a geometric sequence is given by:

a_n = qa_{n-1}

In this problem, we have that the first term and the common ratio are given, respectively, by:

a_1 = 1.7, q = \frac{15.3}{5.1} = \frac{5.1}{1.7} = 3.

Hence the recursive definition is given by:

a_n = 3a_{n-1}, a_1 = 1.7

More can be learned about geometric sequences at brainly.com/question/11847927

#SPJ1

4 0
2 years ago
Can somebody pls tell me the solution I’m rlly stuck. I’ll give you points pls help.
WINSTONCH [101]

Answer:

(4,-1)

Step-by-step explanation:

You can solve this system of equations in a couple of different ways, but I'm going to use the elimination method. If you're solving a system of equations using elimination, you want to have one variable cancel out. In this case, we don't have to change anything because -3y and 3y will already cancel out if we add the two equations together. You can both add or subtract, but it's easiest to add in this case. The equation will be set up like this: 2x-3y=11

                                                                                                      +  7x+3y=25

                                                                                                         --------------

After you add them together, you should get 9x=36, which you can solve by dividing both sides by 9. Then, you'll get x=4. This is your x-coordinate. Next, you want to get your y-coordinate, so you can substitute 4 into one of the two equations for x and solve for y. This will get you -1 for y. I'd also recommend checking your answer. Hope this was helpful! :)

3 0
3 years ago
One serving of oatmeal provides 16% of the fiber you need daily you must get the remaing 21 grams of fiber from other sources ho
alekssr [168]
This means 21g is 100-16%=84%.
21x0.16=3.36
21+3.36=24.36
3 0
4 years ago
Which graph represents the inequality x ≤ –2 or x ≥ 0?
Vikki [24]

For this case we have the following expressions:

x \leq-2\\x \geq0

So:

x \leq-2 Indicates all values less than or equal to -2.

That is, from -∞ to -2.

x \geq0 Indicates all values greater than or equal to 0.

That is, from 0 to ∞.

The "or" means that they do not intersect. So, the correct graph is option A.

Answer:

Option A

7 0
3 years ago
Read 2 more answers
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