Answer: 
skin cells were not burned.
Step-by-step explanation:
<h3><u>
The complete exercise is: Two percent of Sennie's skin cells were burned when she escaped from a fire. If 
of her skin cells were burned then, how many skin cells were not burned?</u></h3><h3 />
Let be "x" the number of Sennie's skin cells that were not burned when she escaped from the fire.
According the the data given in the exercise, you know that 2% represents of Sennie's skin cells that were burned. This means that the percent of her skin cells that were not burned is:
With this information you can write the following proportion:
Solving for "x", you get:
To express the result in Scientific notation, the decimal point must be after the first digit; then you must move the decimal point two places to the left:
Answer:
<h2>
25metres</h2>
Step-by-step explanation:
Given the area of the garden in terms of the width modeled by the equation A(x) = -(x-25)²+625 where x is the width of the garden. The side with that will produce the maximum garden area is occurs at when d[A(x)]/dx = 0
Given A(x) = -(x-25)²+625
d[A(x)]/dx =-2(x-25) + 0
Since d[A(x)]/dx = 0
-2(x-25) = 0
open the parenthesis
-2x+50 = 0
-2x = 0-50
-2x = -50
Divide both sides by -2;
-2x/-2 = -50/-2
x = 25metres
<em>Therefore the width of the garden that will produce the maximum garden area is 5metres.</em>
<em></em>
Answer:
Splash Mountain = $7.25
Centrifugal Chamber= $5.25
Step-by-step explanation:
Click On Link For Work
Answer: 108 rooms
Step-by-step explanation: To solve this problem, we can set up a proportion. In the numerator of our first fraction, we will have the number of rooms Robin can clean and in the denominator, we have the time it takes him to clean 72 rooms which is 6 days.
In our second fraction, we don’t know how many rooms he can clean in 9 days. In fact, that’s what the problem is asking. Since we don’t know how many rooms Robin can clean in 9 days, we can put a variable in the numerator is our fraction. A variable is a letter that represents any number. I will use the variable “x” in this problem. In the position of the denominator, we have the time it takes him to clean X rooms which is 9 days.
Solving from here, we can use cross products so we multiply diagonally.
We have 72 rooms over 6 days equals X rooms over 9 days or 648 = 6x.
Solving from here, divide both sides by 6 and we find that x is equal to 108 which means that Robin can clean 108 rooms in 9 days.
