Find the cardinality of the following set. A = { 12 , 14 , 16 , 18 , 20 }

Mathematics

1 answer:

madam [21]2 years ago

6 0

Answer:

Step-by-step explanation:

Because they are using the number line: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20

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PLEASE HELP!!!!

Allushta [10]

Answer:

B. $165$

Step-by-step explanation:

Let w represent the number of weeks.

We have been given that a wrestler currently weighs 189 pounds and is losing 0.5 of a pound per week. So the weight lost by wrestler in w weeks would be $0.5w$ .

The total weight of wrestler after w weeks would be:

$189-0.5w$

We are also told that the wrestler needs to weigh more than 165 pounds but less than or equal to 185 pounds. This means that total weight of wrestler should be less than or equal to 185 pounds and greater than 165 pounds.

We can represent this information in an inequality as:

$165$

Therefore, option B is the correct choice.

4 0

3 years ago

There are about 30.2 million small businesses in the u.s and about 30,000 other larger businesses. What percent of all businesse

Leni [432]

<h3>Answer:</h3>

99.90%

<h3>Step-by-step explanation:</h3>

STEPS:

Find the total amount
Find out what number of what we want to know the percentage of there are out of the whole amount there is. (Divide the percentage amount we want to find by the total amount)
Turn into a percentage by multiplying by 100

Find the total sum

30.2 mil = 30,200,000 small businesses + 30,000 other = 30,230,000 total

Find the fraction that small businesses make up of the total

$\frac{small~businesses}{total~businesses} = \frac{30,200,000}{30,230,000} = 0.9990$