1.2x-4y=28 solve for y

Answers

Answer 1
Answer: 2x -4y= 28
⇒ -4y= 28 -2x
⇒ y= (28 -2x)/ (-4)
⇒ y= 28/(-4) -(2x)/ (-4)
⇒ y= -7 + 1/2x

The final answer is y= -7 + 1/2x~
Answer 2
Answer:

Final answer:

To solve for y in the equation 1.2x - 4y = 28, subtract 1.2x from both sides, divide both sides by -4, and simplify to get the solution y = -7 + 0.3x.

Explanation:

To solve the equation 1.2x - 4y = 28 for y, we need to isolate the y variable on one side of the equation.

Step 1: Subtract 1.2x from both sides.

Step 2: Divide both sides by -4.

Step 3: Simplify.

Step 4: The solution for y is -7 + 0.3x.

Learn more about Solving equations here:

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A coach wants to know if soccer players who warm up before a game will score more points than those who don't warm up. He will break the team up into two groups and make sure each player gets equal time on the field. He will then count how many points each player makes during the game. What statistic should he study?The standard deviation of the number of points earned by each player
The standard deviation of the number of points earned by each group
The mean number of points earned by each player
The mean number of points earned by each group

Answers

The correct answer is the last option.

Since the coach is studying the two different groups, the results will be more meaningful if the groups are compared to one another as opposed to the players. It would also make more sense to study the mean (or average) of the points scored, rather than the standard deviation (which is essentially a measure of how spread out a set of numbers are).

Answer:

The answer is The mean number of points earned by each group

Step-by-step explanation:

the sun is about 93x10 to the power of 6 miles from earth what this distance written as a whole number?

Answers

The x10 to the power of six part just means that there are six zeros. So, 93000000

9 is added to the product of 9 and a number

Answers

"a number," which is unknown will be represented by "x."

The predicted of 9 and x is 9x.

9 added is +9.

So the expression is 9x + 9

Find the coordinates of m, the midpoint of gh, for g(8,-6) and h(-14,12)

Answers

Answer:

m = (- 3, 3 )

Step-by-step explanation:

given endpoints (x₁, y₁ ) and (x₂, y₂ ) then the midpoint M is

M = ( (x_(1)+x_(2) )/(2) , (y_(1)+y_(2) )/(2) ) ← midpoint formula

let (x₁, y₁ ) = g (8, - 6 ) and (x₂, y₂ ) = h (- 14, 12 ) , them midpoint m is

m = ( (8-14)/(2) , (-6+12)/(2) ) = ( (-6)/(2) , (6)/(2) ) = (- 3, 3 )

Whats the vertex of this question​

Answers

Put a picture up So we can see what you’re talking about

A pool company claims that for optimal results customers should use 20 cups of 73% chlorine solution to treat their pools unfortunately the company only has an 80% chlorine solution and a 60% chlorine solution In stock how many cups of Each chlorine solution should be mixed to create the optimal solution?

Answers

Answer:

13 cups of the 80% chlorine solution + 7 cups of the 60% chlorine solution

Step-by-step explanation:

The pool company recommendation is 20 cups of 73% chlorine to treat their pool

Concentration of chlorine solution in stock = 80% and 60%

Therefore to make 20 cups of 73% solution, we require;

X cups of the 80% chlorine solution and

Y cups of the 60% chlorine solution

That gives 0.8·X + 06·Y = 0.73 × 20

X + Y = 20

Solving gives X = 13 cups

and Y = 7 cups

Therefore to  make the optimal solution, 13 cups of the 80% chlorine solution should be mixed with 7 cups of the 60% chlorine solution.