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
This statement would be incorrect because 0.086 equals 8% because you move the decimal place to the right two spaces.
Answer:
12.566
12.6 (simplified to the tenths)
12.57(simplified to the hundredths)
Step-by-step explanation:
The diameter of a circle is always double of the radius
π is always ≈ 3.14
π * 2^2 = π * 4 ≈ 12.566
Answer: 40.6
Step-by-step explanation:
When finding perimeter, you have to add all sides. 16 plus 16 equals 32. 4.3 plus 4.3 equals 8.6. 8.6 plus 32 equals 40.6
The only solution is when y=y
x+1=x-1 subtract x from both sides
1=-1
This is never true so there are no solutions. In this case it is due to the fact that both lines have the same slope and different y-intercepts. This means that they are parallel lines that have a constant distance between them.
