Help would be appreciated :)

Mathematics

1 answer:

sammy [17]3 years ago

6 0

PEMDAS

When solving an equation we do them in reverse order

AS adding and subtracting

MD multiplication and division

E exponents

Basically we are trying to get the variable alone.

12=10-3x

subtract 10 from each side

then divide by -3 on each side

3/5 x -12 = 18

first add 12 to each side

then multiply by 5/3 to each side

You might be interested in

what is the equation for the line that is perpendicular to the x-axis and passes through the point (4, -7)?

Sidana [21]

Step-by-step explanation:

perpendicular means to cross at a right angle (90 degrees).

so, any line perpendicular to the x-axis is parallel to the y-axis.

and any line parallel to the y-axis has only a defining x value. all points on that line have the same x value (while any value for y from -infinity to +infinity is valid).

the y-axis itself is

x = 0

the specified point here has an x value of 4.

so, the line we are looking for is

x = 4

to point out : this is NOT a function, because for the same x value we get more than 1 valid y values.

7 0

3 years ago

The total area of Ohio is 4.5 * 10^4 square miles.The total area of Ohio is about how many times the total area of Rhode Island?

Anon25 [30]

Answer:

The total area of Ohio is about 30 times the total area of Rhode Island

Step-by-step explanation:

Let

x -----> the total area of Ohio in square miles

y -----> the total area of Rhode Island in square miles

we know that

$x=4.5*10^{4}\ mi^{2}$

$y=1.5*10^{3}\ mi^{2}$ (<em>searched in Google</em>)

To find out approximately how many times the total area of Ohio is compared to the area of Rhode Island, divide the area of Ohio by the area of Rhode Island

$\frac{x}{y}$