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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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Answer:

B) -3

Step-by-step explanation:

1. First you have to write the equation in slope intercept form. To do that, you must have y be alone on one side.

2. move the 3x to the right side with the 5 by subtracting 3x from both sides. Since 3x will cancel on the left, y will be left alone. $y=-3x+5$

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Reva is playing a bean-bag toss game. For each bag that misses the board, the player scores -8 points. Reva misses the board 4 t

erica [24]

Answer:

The answer is -32.

Step-by-step explanation:

Since there is no detailed information given about the game or the total tosses in the question, i will assume that the game is concluded when each player has had 4 tosses.

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A negative value of r means that:

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Answer:

(d.) Those who score high on one variable tend to score low on the other.

Step-by-step explanation:

A negative value of correlation coefficient (r) shows a relationship between two variables such that as one variable increases, the other decreases. It shows the inverse relationship between two variables with the dependence determined by the value of the correlation coefficient (r).

It can be observed that for graphs with negative slope, the correlation coefficient (r) is similarly negative. This speaks about its relationship too.

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Answer:

$7\frac{3}{20}$

Step-by-step explanation:

Hey there!

Well to add this we need to pu it in improper form.

7/5 + 23/4

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So the LCD is 20.

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