94.4π square inches
32π square inches
30.1π square inches
62.4π square inches
The label on the soup can has area of 62.4π square inches. The Option D is correct.
The label is represented by the rectangle in the figure.
The height of rectangle is given as 7.8 inches. The length is equal to the circumference of the circular base of the cylinder.
The circumference of a circle is: 2πr
In this case, the radius of each circle is 4 inches. So, the circumference of each circle is:
= 2π(4)
= 8π
As length of rectangle represents circumference, its length is equal to 8π inches. The height of rectangle is given as 7.8 inches.
We will calculate the area of the rectangle:
Area = Length × Height
Area = (8π) × 7.8
Area = 62.4π.
Read more about Cylinder Area
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Choose all answers that are correct.
A.
cork
B.
glass
C.
lead
D.
titanium
$22.50 per hour. If Britt spends a total of
$940 over the summer, how many hours did
she train with the trainer?
Answer:
The nurse should use 200cc of the 10% saline solution in order to produce a 20% saline solution.
Step-by-step explanation:
to the given mix we add a quantity of a lower mix to generate another.
50cc at 60% + Xcc at 10% = (50 + X)cc at 20%
50 x 60% + X x 10% = (50 + X) x 20%
30 + 0.1X = 10 + 0.2X
30 - 10 = 0.2X - 0.1X
20 = 0.1X
20/0.1 = X
X = 200
To produce a 20% saline solution, the nurse should use 200 cc of the 10% saline solution.
To find out how much of the 10% saline solution the nurse should use, we can set up an equation using the idea that the amount of saline in the mixture is equal to the sum of the amounts of saline in each solution.
Let's say the nurse uses x cc of the 10% saline solution. The amount of saline in the 60% saline solution will be 0.6 * 50 cc = 30 cc. The amount of saline in the 10% saline solution will be 0.1 * x cc = 0.1x cc.
Since the resulting solution is 20% saline, the total amount of saline in the mixture will be 0.2 * (50 + x) cc. Setting up the equation, we have 30 + 0.1x = 0.2 * (50 + x).
Simplifying the equation, we get 30 + 0.1x = 10 + 0.2x. Solving for x, we find that x = 200 cc.
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