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xz_007 [3.2K]
4 years ago
13

At a certain restaurant, milkshakes cost $4 and cheeseburgers cost $6. If Al buys 1 milkshake and x cheeseburgers and spends at

least $30 but no more than $46,
what is one value of x
Mathematics
1 answer:
Katena32 [7]4 years ago
5 0

Answer:

5, 6 or 7

Step-by-step explanation:

If Al spends $30, the number of cheeseburgers bought is:

x=\frac{30-4}{6}\\x=4.3333

Since $30 is the minimum value, he has to buy at least 5 cheeseburgers.

If Al spends $46, the number of cheeseburgers bought is:

x=\frac{46-4}{6}\\x=7

Therefore, Al bought between 5 and 7 cheeseburgers, which means that 5, 6 or 7 are possible values of x.

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Eduardwww [97]

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$16.77

Step-by-step explanation:

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4 0
3 years ago
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Different problem same topic please help
BlackZzzverrR [31]

Answer:

see below

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7 0
3 years ago
Find expressions for the partial derivatives of the following functions:
nlexa [21]

Answer:

Step-by-step explanation: partial derivative is the differentiation of one variable e.g. X while leaving the values of the other variable e.g. Y

These four questions A, B, C and D have different functions separated by commas. I will not assume the commas to be something else like a plus sign.

A. f(x) = g'(x).k(y) , g'(x) + h(y)

f(y) = k'(y).g(x) , g(x) + h'(y)

B. f(x) = g'x (x+y)

f(y) = g'y (x+y) , h'y (y+z)

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C. f(x) = f'x (xy) , f'x (zx)

f(y) = f'y (xy) , f'y (yz)

f(z) = f'z (yz) , f'z (zx)

D. f(x) = f'x (x) , g'(x) , h'x (x,y)

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* while differentiating X alone, functions in Y which are separated by commas from the functions in X, are ignored totally because they are different questions

* In functions where X added to Y is in a bracket e.g. (x+y), to find the derivative of X, Y isn't thrown away because they are joined (by a plus sign) the derivative of X alone in this case would be f'x (x+y)

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6 0
3 years ago
Mike traveled to Greensboro by car. Going there took 6 hours, and the return trip was four hours. Mike averaged a speed of 81 mi
Marat540 [252]

Answer: 64.8 mph

Step-by-step explanation:

Given

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the average speed of the entire trip is

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4 0
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y = 19

5 0
3 years ago
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