All categories

3 years ago

Estimate the solution to the system of equations.

Mathematics

2 answers:

Katen [24]3 years ago

7 0

Answer:

The solution is: x = -1, and y = 8/3

Step-by-step explanation:

Notice that the system of equations can be easily solved via the "elimination" method, by subtracting term by term one equation from the other. Doing such will remove completely the term in "y" (since the terms in "y" are exactly equal in both equations), and leave only an equation containing "x", for which the value can be solved:

$2x+3y=6\\-4x+3y=12\\\\ \\2x-(-4x)+3y-(3y)=6-12\\6x+0=-6\\x=-1$

Now we use this x-value in either equation to solve for y:

8090 [49]3 years ago

5 0

The answer is x=-1 y=8/3

You might be interested in

The cost for a company to produce a part for d days is represented by the function f(d)=325d + 8,795. What does the value 8,795

Anna007 [38]

Answer:

Step-by-step explanation:

A, B are wrong since 8,795 is a constant, it doesn’t change;

D is wrong since it is the starting cost, not total cost

4 0

3 years ago

What is the 399,713 rounded to the place value of the third underlined digit of 399

maksim [4K]

The <em>correct answer</em> is:

400,000.

Explanation:

The third digit in 399 is 9. To round to this place value, we inspect the digit behind it. If the digit is 5 or greater, we round up; if it is less than 5, we round down.

The digit behind 9 is 7. Since it is greater than 5, we round up. This would ordinarily put the number up 1; however, doing that makes the 9 a 10, which in turn makes the next number 10, and the next number 4. This gives us 400,000.

4 0

3 years ago

Read 2 more answers

Why couldn’t you live without your tv 5 sentences!!!!

IRISSAK [1]

Answer:

because would die of boredom .and i wouldn't have Netflix or Hulu.and i would have nothing to look forward. to when i come home from school i would have to just go and do homework. and without TV you would not have a news channel so you wouldn't know things to are important to life.

Step-by-step explanation:

5 0

3 years ago

A washer and a dryer cost $585 combined. The washer costs $65 less than the dryer. What is the cost of the dryer?

Mekhanik [1.2K]

I believe the dryer costs $357.50
there's an easy way to solve this
you just divide the given price($585)
by 2 and then to one half add $65
and the answer is 65+292.5=357.5

6 0

3 years ago

Which of the following lists of ordered pairs is a function? A. (2, 4), (0, 2), (2, -4), (5, 3) B. (1, 2), (1, -2), (3, 2), (3,

Blababa [14]

B
..........................

8 0

3 years ago

Read 2 more answers