(xa-b)/x=y
Make x the subject of the formula.

Answers

Answer 1

Answer: (xa-b)/x=y

xy=xa-b

xa-xy=b

x(a-y)=b

x=b/(a-y)

Answer 2

Answer: $\frac{xa-b}x=y\nxa-b=xy\nxa-xy=b\nx(a-y)=b\nx=(b)/(a-y)$

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Simplify 6.4a - 4.7a

Answers

4.7a+8.2a-6.5a=0

We simplify the equation to the form, which is simple to understand

4.7a+8.2a-6.5a=0

We move all terms containing a to the left and all other terms to the right.

+4.7a+8.2a-6.5a=0

We simplify left and right side of the equation.

+6.4a=0

We divide both sides of the equation by 6.4 to get a.

a=0

Answer is 1.7a

Hope it helped.

-Charlie

What is the discriminant of 3x^2+6x=2

Answers

$ax^2+bx+c=0\n\nthe\ discriminant:\Delta=b^2-4ac\n============================\n\n3x^2+6x=2\ \ \ \ \ |subtract\ 2\ from\ both\ sides\n\n3x^2+6x-2=0\n\na=3;\ b=6;\ c=-2\n\n\Delta=6^2-4\cdot3\cdot(-2)=36+24=\boxed{60}\leftarrow answer$

Find the coordinates of the vertices after the given transformation. Reflection across x=-2. W(-4,-4)

Answers

Answer:

To reflect a point across the vertical line x = -2, we can use the formula:

(x, y) → (2c - x, y)

where c is the x-coordinate of the line of reflection. In this case, c = -2. Let's apply this formula to the point W(-4, -4):

W' = (2(-2) - (-4), -4)

= (-4 + 4, -4)

= (0, -4)

Therefore, after the reflection across x = -2, the coordinates of W(-4, -4) become W'(0, -4).

Step-by-step explanation:

Please help, will give brainliest answer

Answers

I do khan academy 2 but sorry the answer

A total of 180 students went on a field trip. There were 3 buses. If each bus had the same number of students on it, how many students were on each bus? Explain how to solve using compatible numbers.

Answers

Answer:

Step-by-step explanation:

180 divided by 3 is 60

Answer:

The answer is 60.

Step-by-step explanation:

First, you should know that the answer will have a 6 in it, because 6 x 3 = 18.

You don't have to solve anything, you just add a zero onto the 6, because the number 18 has a zero on it. Or you can always use a calculator.

60 x 3 = 180

a scientist had 3/4 of a bottle of a solution. she used 1/6 of the solution in an experiment how much of the bottle did she use? PLS HELP FOR 20 POINTS

Answers

Answer:

To work this out you need to multiply 3/4 by 1/6.

=3/24

=1/8

Step-by-step explanation:

Hope this helps :)

Final answer:

The scientist used 1/8 of the bottle.

Explanation:

To find out how much of the bottle the scientist used, we need to multiply the fraction of the solution used (1/6) by the fraction of the bottle filled with the solution (3/4).

The solution used = (1/6) * (3/4) = 3/24 = 1/8.

Therefore, the scientist used 1/8 of the bottle.