All categories

2 years ago

If rx – st = r, which expression represents r.

Mathematics

1 answer:

statuscvo [17]2 years ago

5 0

Answer:

${ \tt{rx - st = r}}$

» Collect like terms, r terms on the left hand side by subtracting r from both sides and adding st to both sides

${ \tt{(rx - st) { \green{ - r + st }} = r{ \green{ - r + st}}}} \\ { \tt{rx - r = st}}$

» On the left hand side, factorise out r

${ \tt{ \green{r(x - 1)} = st}} \\ \\ { \boxed{ \tt{ \blue{ \: r = \frac{st}{x - 1} }}}}$

You might be interested in

Reflect the point (a) a-axis, and (b) in the y-axis (0,-2)

katovenus [111]

Answer:

here is somthing to help

Step-by-step explanation:

3 0

2 years ago

Geometry math question no Guessing and Please show work

tatyana61 [14]

The point where the two diagonals meet is also the midpoint of both diagonals.

This means that AE = EC . Since we have the value for both segments, we have

$AE = EC \implies 2x = x+2 \implies x = 2$

Since AC = AE + EC, we have

$AE + EC = 2x+x+2 = 3x+2 = 3\cdot 2 + 2 = 6+2 = 8$

4 0

2 years ago

Please Help !!!!!!!!!!!!!!

TEA [102]

Answer:

Step-by-step explanation:

643-166=477

477÷18=26.5

Then, round to the nearest whole.

Which makes it 27 sets.

7 0

2 years ago

Line M contains the following two points: (1, 10) and (6, 20). What is the slope of line M?

iren2701 [21]

Answer:

The slope is 2.

Step-by-step explanation:

In order to find the slope of the line, we need to start by using the points in the slope formula.

m(slope) = (y2 - y1)/(x2 - x1)

m = (20 - 10)/(6 - 1)

m = 10/5

m = 2

So the slope of this line would be 2

3 0

2 years ago

What are roots of the equation -90=x (x-18)

daser333 [38]

Answer:

-90= $x$ ( $x$ -18)

-90= $x^{2}$ -18 $x$

$0=x^{2}-18x+90$

$x=9+3i or 9-3i$

Step-by-step explanation:

you need to use quadratic formula and you will find square root a negative ( -9 ), which is an imaginary no.

square root (-9) = 3i

4 0

2 years ago