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3 years ago

The math club sells candy bars and drinks during football games.

Mathematics

1 answer:

Vinvika [58]3 years ago

5 0

Answer:

The price of candy bar is 75 cents

Step-by-step explanation:

Let c be the price of candy bar and d be the price of drinks

Then according to given statements

$60c+110d = 265\ \ \ \ Eqn\ 1\\120c+90d = 270\ \ \ \ Eqn\ 2$

Multiplying equation 1 by 2

$120c+220d = 530\ \ \ \ Eqn\ 3$

Subtracting equation 2 from equation 3

$120c+220d - (120c+90d) = 530 - 270\\120c+220d-120-90d = 260\\130d=260$

Dividing both sides by 130

$\frac{130d}{130} = \frac{260}{130}\\d = 2$

Putting d=2 in equation 1

$60c+110(2) = 265\\60c + 220 = 265\\60c+220-220 = 265-220\\60c=45\\c = \frac{45}{60}\\c = 0.75$

Price of candy bar is $0.75 or 75 cents

Hence,

The price of candy bar is 75 cents

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Step-by-step explanation:

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3 years ago

The Louvre is an art museum in Paris. A glass square base pyramid sits in front of the entrance to the museum. If the pyramid is

Sveta_85 [38]

Answer:

lateral area = 2320 m²

Step-by-step explanation:

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Half of the square base is 40/2 = 20 meters . With the height it forms a right angle triangle. The hypotenuse side is the slant height of the pyramid.

Using Pythagoras's theorem

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3 years ago

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Oliga [24]

Answer:

First five terms are:

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Step-by-step explanation:

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