So one easy way is to make the equation equal to only one place holder so
-7x-4y=16
add 7x to both sdies
-4y=16+7x
multiply both sides by -1
4y=-16-7x
divide both sides by 4
y=-4-7/4x
subsitute values for x and get values for y
exg
if x=0 then y=-4
if x=1 then y=-5 3/7
etc
Answer:
The solution is (4, 0)
Step-by-step explanation:
Using Linear combination method to solve:
Since "e" have the same coefficient in both equation with opposite operator; we will add.
Divide both side by coefficient of d which is 3
Since d = 4; put 'd' into any of the equation to get 'e'
Therefore, the solution is (4, 0)
The thing that best describes the values of x and y is option B; they will be real numbers greater than or equal to 0.
<h3>What is a Real Number?</h3>
The real number refers to the union of both rational and irrational numbers that can have negative or positive values.
From the given information:
Peaches are being bought and sold for $2 per pound.
There is no negative value used here if x represents the number of pounds of peaches bought and y represents the total cost of the peaches.
Thus, a conclusion that can be reached as to the values of x and y is that they contain real numbers greater than or equal to 0.
Read more about real numbers here:
brainly.com/question/155227
#SPJ1
Answer:
18.6
Step-by-step explanation:
To find the mean of a data set, first, you have to arrange the numbers from least to greatest. Since the data set is already in that order, this saves us the first step. Next, what we would do is add up the numbers...
13+16+17+19+22+25=...
112.
Next, we would have to divide that number by 6 because there are 6 numbers. 112 ÷ 6 = 18.666666666666666666666666666667
Rounded to the nearest tenth, it would be 18.6
Therefore, the mean of this data set is 18.6.
-<em>kiniwih426</em>
12+12m= 75+ 10m
2m = 63
M= 31.5