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uranmaximum [27]
3 years ago
15

Phillip, Anna, and Mackenzie go out to dinner. They leave a 20% tip, which is $6. How much was their total bill with tip include

d? A. $24 B. $26 C. $30 D. $36​
Mathematics
1 answer:
Klio2033 [76]3 years ago
7 0

Answer:

give me points plzzz

Step-by-step explanation:

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7.
Iteru [2.4K]

Answer:

a. 45 π

b. 12 π

c. 16 π

Step-by-step explanation:

a.

If a 3×5 rectangle is revolved about one of its sides of length 5 to create a solid of revolution, we can see a cilinder with:

Radius: 3

Height: 5

Then the volume of the cylinder is:

V=π*r^{2} *h= π*(3)^{2} *(5) = π*(9)*(5)=45 π

b. If a 3-4-5 right triangle is revolved about a leg of length 4 to create a solid of revolution. We can see a cone with:

Radius: 3

Height: 4

Then the volume of the cone is:

V=(1/3)*π*r^{2} *h= (1/3)*π*(3)^{2} *(4) = (1/3)*π*(9)*(4)=12 π

c. We can answer this item using the past (b. item) and solving for the other leg revolution (3):

Then we will have:

Radius: 4

Height: 3

Then the volume of the cone is:

V=(1/3)*π*r^{2} *h= (1/3)*π*(4)^{2} *(3) = (1/3)*π*(16)*(3)=16 π

7 0
3 years ago
What's the mass of one iron atom in standard and scientific notation
koban [17]
Check the attached file for the answer.

4 0
3 years ago
What is the value of x in the equation 7x + 2y = 48 , when y = 3?
9966 [12]
<span>7x + 2y = 48
</span><span>7x + 2(3) = 48
7x + 6 = 48
7x = 42
 x = 6

answer </span><span>when y = 3,  x  = 6</span>
7 0
3 years ago
Which of the following equations is NOT an example of inverse variation?
astraxan [27]
Your answer is going to be f
5 0
3 years ago
Help please Algebra 1 <br> Simplify 4y-6yx+y
astraxan [27]
I hope you will like my answer

5 0
3 years ago
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