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MArishka [77]
3 years ago
11

At a sporting event concession stand, a small bottle of water costs $2.50 and a large bottle costs $3.00. The concession stand e

mployees collected a total of $357 from water bottle sales. They sold twice as many large bottles as small bottles. Let s represent the number of small bottles sold and let l represent the number of large bottles sold. How many of each size water bottle did they sell? (please explain full work)
Mathematics
1 answer:
timama [110]3 years ago
8 0
The answer will be 7.50 because you are doing your times if you do divid its going to be hard so times to get your answer.
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The volume V of a gas varies inversely as the pressure P and directly as the temperature A certain gas has a volume of 10 liters
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Answer:

Joint variation states that:

If z is directly proportional to x and inversely proportional to y,

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then the equation is in the form: z = k\frac{x}{y} where k is the constant of variation.

From the given information: The volume V of a gas varies inversely as the pressure P and directly as the temperature

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by definition of joint variation:

V = k\frac{T}{P}  .....[1] where k is the constant of variation.

It is also given that a certain gas has a volume of 10 liters(L) , a temperature of 300 kelvins(K), and a pressure of 1.5 atmosphere(atm).

Substitute these given values in [1] to solve for k;

10 = k\frac{300}{1.5}

Simplify:

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Divide by 200 both sides we have;

k = \frac{10}{200} =\frac{1}{20}

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Now substitute the given data and value of k in [1] we have;

V = \frac{1}{20} \cdot \frac{400}{5} = \frac{20}{5} = 4

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