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3 years ago

Reese wants to organize a party and decides to save money for it.He calculates that he needs $420 in 9 weeks.He already has $60

Mathematics

1 answer:

disa [49]3 years ago

5 0

Answer:

3840

Step-by-step explanation:

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In a particular region, for families with a combined income of $75,000 or more, 15% of these families have no children, 35% of t

SCORPION-xisa [38]

Answer:

The probability distribution for x:"number of children per family for this income group" is:

$\text{P(x=0)}=0.15\\\\\text{P(x=1)}=0.35\\\\\text{P(x=2)}=0.45\\\\\text{P(x=3)}=0.05\\\\$

Step-by-step explanation:

With the information given we have the relative frequencies of each category.

We know:

$\text{P(x=0)}=0.15\\\\\text{P(x=1)}=0.35\\\\\text{P(x=2)}=0.45\\\\\text{P(x=3)}=0.05\\\\$

7 0

3 years ago

The two-way table shows the number of books of each type in Eliza's home what is the probability that a randomly selected refer

Salsk061 [2.6K]

Answer:

B. 0.4

Step-by-step explanation:

Use the definition of the probability

$Pr=\dfrac{\text{Number of all favorable outcomes}}{\text{Number of all possible outcomes}}$

You have to find the probability that a randomly selected reference book is hard cover. Hence, from the table

Number of all possible outcomes = Number of Reference books = 25
Number of all favorable outcomes = Number of Hardcover Reference books = 10

So, the probability is

$Pr=\dfrac{10}{25}=\dfrac{40}{100}=0.4$

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4 years ago

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An item that originally cost $12 is marked down 30%. What is the price of the item after the markdown? Show work please

Anettt [7]

First we have to determine 30% of 12.

(30×12)÷100=3.6 so 3.6 is 30% of 12.

12 - 3.6= 8.4

Your answer is 8.4

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3 years ago

What is the surface area of the following triangular prism?

eimsori [14]

My answer the question what is the surface area of a triangular prism is 126 yards2

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4 years ago

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Almost 7 over 16 of the total water supplied to a household is wasted because of leaky faucets. Determine the decimal equivalent

mash [69]

Answer:

We say this result "terminates" because we found no remainder.

0.123123123.... is an example of a non-terminating fraction.

0.123 123

This fraction is equal to ----------- = --------- = .123123123........

1-0.001 999

Step-by-step explanation:

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3 years ago

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