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Natasha_Volkova [10]

3 years ago

15

In a restaurant, Chad tracked the number of children and adults that came in over an hour. During that time, 8 children and 20 a

dults came in the restaurant. What is the ratio of adults to children that came into the restaurant?

1 answer:

madreJ [45]3 years ago

7 0

Answer:5:2

Step-by-step explanation

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What does –5(–2) equal

mel-nik [20]

Answer:

10

Step-by-step explanation:

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3 years ago

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A shipping container contains seven complex electronic systems. Unknown to the purchaser, two are defective. Two of the seven ar

kodGreya [7K]

Answer:

$\large\boxed{\large\boxed{10/21}}$

Explanation:

There are only two mutually exclusive possibilities for each complex electronic system: being <em>defective</em> or being <em>not defective</em>:

Number of complex electronic systems: 7
Nmber of defective systems: 2
Number of not defective systems: 5

<em>Probability </em>that no defective systems are found in the sample is the equal to the probability of selecting them consecutively without replacement and finding each one is not defective:

Porbability the first is not defective × probability the second is not defective

5/7 × 4/6 = 20/42 = 10/21

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2 years ago

Find the value of 3x + 4y when x = -2 and y = 4

lord [1]

-6x+16y................

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3 years ago

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SOLVING QUADRATIC EQUATIONS<br> 2) Solve 2x2 - 5 = 27

Nimfa-mama [501]

Answer:

x = ±4

Step-by-step explanation:

Step 1: Write out quadratic

2x² - 5 = 27

Step 2: Add 5 to both sides

2x² = 32

Step 3: Divide both sides by 2

x² = 16

Step 4: Take the square root of both sides

x = ±4

∴ x can equal -4 or 4

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The expression c- 0.25c can be used to find the cost of an item on sale for 25% off. Which expression below is equivalent to c-

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0. 33 por que los jamones sivieron a 15 pesos y mi mama se va asta otro lado para compralo

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