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BabaBlast [244]
3 years ago
12

Brainly if u awnser!

Mathematics
1 answer:
just olya [345]3 years ago
4 0

The formula of a perimeter of a rectangle l × w:

P = 2l + 2w

We have the perimeter P = 76 cm and the length l = 20 cm. Substitute:

76 = 2(20) + 2w

76 = 40 + 2w    <em>subtract 40 from both sides</em>

36 = 2w     <em>divide both sides by 2</em>

18 = w

Answer: width = 18 cm.

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Yuki bought a pound of confetti for \$12$12. What is the price, in dollars, per ounce of confetti? There are 1616 ounces in 11 p
tatiyna

Answer:

$0.75

Step-by-step explanation:

We have been given that Yuki bought a pound of confetti for $12.

To find the price of per ounce of confetti, we will divide the total price of 1 pound confetti by number of ounces in 1 pound.

1 pound = 16 ounces.    

Let us divide 12 by 16 to find the price of confetti per ounce.

\text{Price of per ounce confetti}=\frac{12}{16}

\text{Price of per ounce confetti}=\frac{3}{4}

\text{Price of per ounce confetti}=0.75

Therefore, the price of per ounce confetti is $0.75.


3 0
4 years ago
Rationalize 2 / 2√2
horsena [70]

Answer:

\frac{\sqrt{2} }{2}

Step-by-step explanation:

\frac{2}{2\sqrt{2}  } * \frac{2\sqrt{2} }{2\sqrt{2}  }    =\frac{4\sqrt{2} }{8} = \frac{\sqrt{2} }{2}

6 0
3 years ago
Please help me with this question. Question C (i) and (ii)
GenaCL600 [577]

Answer:

idk

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Step-by-step explanation:

8 0
3 years ago
The high temperature on Friday was 8 degrees above zero. The low temperature was 3 degrees below zero. Which expression gives th
olga_2 [115]

Using the mean concept, the expression that gives the average of the low and high temperatures is:

(-3 + 8)/2.

<h3>What is the mean?</h3>

The mean of a data-set is given by the <u>sum of all observations in the data-set divided by the number of observations</u>.

In this problem, the two observations are -3 and 8, hence their average is given by:

(-3 + 8)/2.

More can be learned about the mean concept at brainly.com/question/25122507

#SPJ1

4 0
2 years ago
Mr. duc asked to set up 450 chairs in a large hall. Perry puts 20 chairs in each row. He has already set up 15 rows of chairs. H
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Mr. duc asked to set up 450 chairs in a large hall. Perry puts 20 chairs in each row. He has already set up 15 rows of chairs

Each row consists of 20 chairs

He already set up 15 rows

So number of chairs he already set up = chairs in each row * number of rows

20 * 15 = 300

So , he already set up 300 chairs

Total chairs to set up is 450

Remaining chairs to set up = 450 - 300 = 150

So, 150 more chairs to set up

8 0
3 years ago
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