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GrogVix [38]
3 years ago
8

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
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Whaat does mean, meadain,mode and,range mean?
Oliga [24]

Answer:

Median is the center of the numbers that you were given

Mode is the number that appears most often

Range is the difference between the lowest and highest numbers

Mean is the average

Step-by-step explanation:

Median: line all numbers up in order from greatest to least and then count to the center if there are 2 in the center add them and divide them by 2.

Mode: Count how many of each number

Range: Subtract the largest number from the smallest. 17-12=5 5 is the range

Mean: Add all numbers up and divide by the amount of numbers.

1+3+5+3=12

12/4 = 3, three is the mean

5 0
4 years ago
Read 2 more answers
Find the midpoint of AB.<br><br> 1. (4.5, 4.5)<br> 2. (1.5, 1.5)<br> 3. (3, 3)<br> 4. (2, 2)
eimsori [14]

Answer:

2. (1.5, 1.5)

Step-by-step explanation:

midpoint = (x1+x2)/2  , (y1+y2)/2

A = (-3,-3)   and B = (6,6)

midpoint = (-3+6)/2,  (-3+6)/2

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5 0
3 years ago
Help loll i need an 100
vlabodo [156]

Answer:

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Step-by-step explanation:

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3 years ago
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One number is nine more than another number. If the sum of numbers is 65, find both numbers
forsale [732]

Answer:

The Answer is: The First Number is: 37 and the Second Number is: 28.

Step-by-step explanation:

Let f = first number and s = second number.

f = s + 9

f + s = 65

Substitute:

s + 9 + s = 65

2s = 56

s = 28, the second number.

f = 28 + 9 = 37, the first number.

Proof:

37 + 28 =  65

65 = 65

Then:

37 = 28 + 9

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Hope this helps! Have an Awesome Day!! :-)

5 0
4 years ago
Terry’s 7th grade class started out with 40 students. Over the last 4 months the class has seen a 30% decrease in students. How
Rashid [163]

Answer:

28 students

Step-by-step explanation:

30% is equal to .3

40 x .3 equals 12

This means the class has lost 12 students.

40 - 12 is 28.

Another way:

Because the class has lost 30% of it's students, you know that the class is 70% of it's original capacity.

70% is equal to .7

40 x .7 is 28

4 0
3 years ago
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