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3 years ago

A dance floor is in the shape of a rectangle. It is 21 meters long and16 meters wide. What is its perimeter?

Mathematics

2 answers:

alukav5142 [94]3 years ago

5 0

Answer:

$P = 74\ meters$

Step-by-step explanation:

By definition the perimeter of a rectangle is the sum of the lengths of its 4 sides.

The formula for calculating the perimeter of a rectangle is as follows:

$P = 2w + 2l$

Where P is the perimeter, w is the width and l is the length.

In this case we want to find P and we know that:

$w =16\ meters$

$l =21\ meters$

Therefore:

$P = 2(16) + 2(21)$

$P = 32 + 42$

$P = 74\ meters$

Katen [24]3 years ago

4 0

Answer: The perimeter is 74 meters.

Step-by-step explanation:

21 plus 21 plus 16 plus 16 = 74

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Dave ordered dinner for a party of 10 people. Three people ordered the $4.75 chicken dinner, two people ordered the $4.95 fish d

postnew [5]

Answer:

The average cost of each dinner at Dave's party is <u>$5.79</u>.

Step-by-step explanation:

Given:

Dave ordered dinner for a party of 10 people.

Three people ordered the $4.75 chicken dinner, two people ordered the $4.95 fish dinner, and five had the beef dinner at a cost of $6.75 each.

Now, to find the average cost of each dinner at Dave's party.

So, we get the total amount for the dinner:

Three people ordered the $4.75 chicken dinner.

$4.75\times 3=14.25$

Two people ordered the $4.95 fish dinner.

$4.95\times 2=9.90$

Five had the beef dinner at a cost of $6.75.

$6.75\times 5=33.75$

Total amount of dinner = $14.25+9.90+33.75=\$57.90.$

Now, to get the average cost of each dinner of 10 people we divide the total amount of dinner by 10:

$57.90\div 10$

$=\$5.79.$

Therefore, the average cost of each dinner at Dave's party is $5.79.

7 0

3 years ago

How do I answer this question

seraphim [82]

We need to convert 2 kilograms into pounds. First, we find how many pounds are in 1 kilogram.

There are about 2 pounds in one kilogram.

Then we multiply 2 pounds by 2 kilograms to convert the 2 kilograms into pounds.

2 * 2 = 4

So, the answer to this question is 4 pounds.

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4 years ago

22/3 as a mixed number

fgiga [73]

7 and 1/3 so 7 1/3

Hope this helps

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3 years ago

Evaluate the expression<br> −1+(4/2(6−1))2

Katarina [22]

Answer:19

Step-by-step explanation:

−1+(

(6−1))(2)

=−1+2(6−1)(2)

=−1+(2)(5)(2)

=−1+(10)(2)

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harina [27]

Answer:

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