A movie theater has 1,000 seats. There are 424 adults and 339 children sitting i seats. How many of the seats are empty

Mathematics

1 answer:

il63 [147K]2 years ago

6 0

Answer:

237

Step-by-step explanation:

1000-424-339=237

:):):)

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QUESTION 1:

Romashka [77]

I like to use the standard form to write the equation of a perpendicular line, especially when the original equation is in that form. The perpendicular line will have the x- and y-coefficients swapped and one negated (remember this for Question 3). Thus, it will be

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Solving for y (to get slope-intercept form), we find

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The given equation has slope -3/6 = -1/2, so that will be the slope of the parallel line. (matches selection A)

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Sever21 [200]

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A shipment of 40 fancy calculators contains 3 defective units. What is the probability if a college bookstore buys 20 calculator

JulsSmile [24]

Answer:

38.46%

Step-by-step explanation:

There are no names or marking that can make the calculator look different, so the order is not important. Then we should use a combination to solve this problem.

There are 40 calculators in one shipment, 37 of them good items and 3 of them are defect items. We need to choose 19 good calculators and 1 defect calculator. The number of ways to do that will be:

$\frac{37}{19}$ * $\frac{3}{1}$ = 37! $\frac{37!}{19!(37-19!)} * \frac{3!}{1!(3-1)!}$ = 53017895700