PEMDAS<span> is a word for Parenthesis Exponents Multiplication Division Addition Subtraction.</span>
Answer:
631139.04 kilometers in 3 years
Step-by-step explanation:
Let x = how many kilometers she walk
y = time (minutes)
Since she walks 4km in 10 minutes.
x = 4, y = 10
(4,10)
But how many minutes if she walk only a kilometer? Divide x and y by 4.
(1,2.5)
She walks a kilometer under 2.5 minutes.
Now finding rate of changes.

Since m = 2.5
and of course, the function should be proportional so the equation should be y = mx.

Since time should be minutes instead of years.
Since 3 years = 1577847.6 minutes

Divide both sides by 2.5

<span><span>If you want to evaluate what
is 10 percent of 400, you
can do this using the following few steps:</span><span>
10% * 400 = 10/100 * 400 = 0.1 * 400 = 40
<span>10% of 400 is 40.</span></span></span>
Isolate The variable by dividing each side by factors that don’t contain variable
X=407 that’s if you round to the nearest whole number if you don’t want that the answer is 406.74874601