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3 years ago

7

candice buy a board that is 12 feet long. the store incorrectly masures and prices the board at 13.2 feet. what is the percentag

e. the choices are 15%, 10%, 12.5%, 20%

1 answer:

Galina-37 [17]3 years ago

6 0

The board was increased by 1.2 feet. The percentage increase was about 10%

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Some help! i need someone to answer this for me!

vredina [299]

Answer:

-27

Step-by-step explanation:

Substitute everything:

6^2/-4+ 6^2/-2

36/-4+36/-2

-9+-18

-27

7 0

3 years ago

How many are 2 raised to 3 ???

Andru [333]

Answer:

8

Step-by-step explanation:

2^3

It is two multiplied by itself 3 times

2*2*2

8

4 0

3 years ago

Suppose that 14 bluebirds and 11 robins are trying out for a choir that will have 7 members.How many ways can this choir be form

gayaneshka [121]

Answer:311740

Step-by-step explanation:

Given

There are 14 blue birds and 11 robins

We have to choose 7 members such that there are more blue birds than robins

This can be possible in 4 ways i.e.

7 BB,6 BB and 1 R, 5 BB 2 R,4 BB 3 R

Therefore total no of ways are

$=^{14}C_7+^{14}C_6\times ^{11}C_1+^{14}C_6\times ^{11}C_2+^{14}C_4\times ^{11}C_3$

$=311740\ ways$

5 0

3 years ago

Read 2 more answers

A pack of 100 recordable DVDs contains 5 defective disks. You select four disks . What is the probability of selecting at least

Karo-lina-s [1.5K]

Answer: 3% (3/100), 4% (1/25), and 5% (1/20)

Step-by-step explanation:

So, there are 100 recordable DVDs, and 5 are defective. The way you find the answer is by dividing 100 by 100, which equals one. That means you have a one percent chance to select one random DVD. But, since you need to find the probability of selecting at least three non-defective DVDs, you would need to multiply 1 by 3, 4 or 5 to get the percentages for you probability.

4 0

3 years ago

What is 33 percent of 400

Eduardwww [97]

<h2>QUESTION</h2>

What is 33% of 400?

<h2>ANSWER AND EXPLANATION</h2>

To find the percent of a number, you have to change the percent into a decimal or a fraction and multiply by the number.

<h3>DECIMAL</h3>

To change a percent into a decimal, remove the percent sign and move the decimal point 2 places to the left.

$33 \% \rightarrow 0.33$

Now that you have your decimal, multiply by 400:

$0.33 \times 400 = 132$

ANSWER = 132

<h3>FRACTION</h3>

To change a percent into a fraction, make the percent number as the numerator(top number) and 100 as the denominator(bottom number) since fractions are out of 100.

$33 \% \rightarrow \frac{33}{100}$

Now that you have your fraction, multiply by 400:

$\frac{33}{100} \times 400 = \frac{13200}{100} \rightarrow 132$

ANSWER = 132

<em>If you have any questions, feel free to ask in the comments! :)</em>

4 0

4 years ago

Read 2 more answers