MATHEMATICS HIGH SCHOOL

David is running a concession stand at a soccer game. He sells nachos and sodas. Nachos cost $2.50 each and sodas cost $1.50each. At the end of the game, David made a total of $120 and sold a total of 72 nachos and sodas combined. Which system of equations represents this situation? (x value represents nachos and y value represents sodas)(12, 60)


(57, 15)


(61, 26)


(15, 57)

Answers

Answer 1
Answer: The answer to this question is (57,15)
Answer 2
Answer:

Answer:

it is (12,60)

Step-by-step explanation:

12x2.50= 30.00

60x1.50= 90.00

30+90= 120

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Is .32903 greater than 0.59

Answers

No, .32903 is not greater than 0.59
It does not matter how long is the number after the point. As 5 is bigger than 3, 0.32903 is smaller than 0.59

What is the product of 32/3 and 142/5

Answers

remember that
(x)/(y) times (z)/(t)=(x times z)/(y times t)
so we have
(32)/(3) times (142)/(5)
that equals
(32 times 142)/(3 times 5)=(4544)/(15)=302 and 14/15
(32)/(3) * (142)/(5) =(32*142)/(3*5)=(4544)/(15)=\boxed{\bf{302(14)/(15)=302.933333}}

A cannonball is launched out of a cannon. Its height, in feet, can berepresented as h(t)=-16t^2+373t+5, with t measuring seconds. Find h(3)

Answers

Plug 3 in for every x.
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How would you find the real solution, by using the quadratic formula.
x^2-4x+2=0

Answers

x^2-4x+2=0 \n \na=1 \n b=-4 \n c=2 \n b^2-4ac=(-4)^2-4 * 1 * 2=16-8=8 \n \nx=(-b \pm √(b^2-4ac))/(2a)=(-(-4) \pm √(8))/(2 * 1)=(4 \pm √(4 * 2))/(2)=(4 \pm 2√(2))/(2)=(2(2 \pm √(2)))/(2)=2 \pm √(2) \n\boxed{x=2-√(2) \hbox{ or } x=2+√(2)}
x^2-4x+2=0\nx^2-4x+4-2=0\n(x-2)^2=2\nx-2=\sqrt2 \vee x-2=-\sqrt2\nx=2+\sqrt2 \vee x=2-\sqrt2

A jar contains 4 red marbles, numbered 1 to 4, and 11 blue marbles numbered 1 to 11. A marble is chosen at random. If you're told the marble is red, what is the probability that it has the number 2 on it?

Answers

Answer:

25%

Step-by-step explanation:

So there are four marbles that are red.

It doesnt matter if we have a probability of picking blue because the question says you are picking red.

There are four possible outcomes and one favorable outcome so it is 1/4 of 25/100 or 25%

If my answer is incorrect, pls correct me!

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-Chetan K

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