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mafiozo [28]
3 years ago
5

Tyrone works at a diner as a cashier and a host he earns 7.95$ per hour no matter which job he dose Tyrone wants to buy a new gu

itar that cost 238.50$ the manager of the diner needs him to work for 18 hours next week as a cashier if Tyrone wants to buy the guitar next week how many hours would he need to work as a host?
Mathematics
2 answers:
Alla [95]3 years ago
7 0

Answer:

Step-by-step explanation:

7.95h + 7.95(18) = 238.50

7.95h + 143.10 = 238.50

7.95h = 238.50 - 143.10

7.95h = 95.40

h = 95.40 / 7.95

h = 12 <==== he would need to work 12 hrs as a host

AveGali [126]3 years ago
3 0

Answer:

18 * 7.95 = $143.10

238.50 - 143.10 = 95.40

95.40/7.95 = 12

12 hours

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Find the first partial derivatives of the function f(x,y,z)=4xsin(y−z)
Amanda [17]

Answer:

f_x(x,y,z)=4\sin (y-z)

f_x(x,y,z)=4x\cos (y-z)

f_z(x,y,z)=-4x\cos (y-z)

Step-by-step explanation:

The given function is

f(x,y,z)=4x\sin (y-z)

We need to find first partial derivatives of the function.

Differentiate partially w.r.t. x and y, z are constants.

f_x(x,y,z)=4(1)\sin (y-z)

f_x(x,y,z)=4\sin (y-z)

Differentiate partially w.r.t. y and x, z are constants.

f_y(x,y,z)=4x\cos (y-z)\dfrac{\partial}{\partial y}(y-z)

f_y(x,y,z)=4x\cos (y-z)

Differentiate partially w.r.t. z and x, y are constants.

f_z(x,y,z)=4x\cos (y-z)\dfrac{\partial}{\partial z}(y-z)

f_z(x,y,z)=4x\cos (y-z)(-1)

f_z(x,y,z)=-4x\cos (y-z)

Therefore, the first partial derivatives of the function are f_x(x,y,z)=4\sin (y-z), f_x(x,y,z)=4x\cos (y-z)\text{ and }f_z(x,y,z)=-4x\cos (y-z).

4 0
3 years ago
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Answer:

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Step-by-step explanation:

<u>-2</u>+6x+z-2x<u>+8</u>-4z

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6+4x<u>+z-4z</u>

6+4x-3z

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What is the purpose of simultaneous equations?
sveta [45]

Answer:

a set of two or more equations, each containing two or more variables whose values can simultaneously satisfy both or all the equations in the set, the number of variables being equal to or less than the number of equations in the set.

Step-by-step explanation:

It works because of two properties of equations: Multiplying (or dividing) the expression on each side by the same number does not alter the equation. Adding two equations produces another valid equation: e.g. 2x = x + 10 (x = 10) and x − 3 = 7 (x also = 10).

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3 years ago
Please Help ASAP .......
Alekssandra [29.7K]
If it’s asking for Volume then the answer is 226.19.
If it’s surface area then it would be 207.35
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3 years ago
Read 2 more answers
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