X - unit of length
w,l - the sides of a rectangle
7 : 2 ⇒ 7x : 2x
Perimeter: P = 207cm
Perimeter: P = 2w + 2l
therefore: 2w + 2l = 207 |divide both sides by 2
w + l = 103.5 (cm)
w : l = 7 : 2 ⇒ w : l = 7x : 2x ⇒ w = 7x; l = 2x
subtitute
7x + 2x = 103.5
9x = 103.5 |divide both sides by 9
x = 11.5 (cm)
7x = 7 · 11.5cm = 80.5cm
2x = 2 · 11.5cm = 23cm
w = 80.5cm; l = 23cm
Area = wl
Area: A = 80.5cm · 23cm = 1851.5cm²
Answer: False
Step-by-step explanation: First, you are going to multiply the numbers in the first set of parenthesis, getting 72. Now, have 72 take the place of 12x6 in the equation. Your new equation looks like this: 0.3 x <u><em>72</em></u> = 0.4(12-3).
Going off of step one, you will be doing the same thing with the second set, but you will be subtracting instead. You will get 9, and plug it place of the parenthesis. Your equation now looks like o.3 x 72 = 0.4 x <em><u>9.</u></em>
<em><u /></em>
Next, you will multiply the set of numbers on the left side of the equal sign, getting 21.6. You now have an equation of <em><u>21.6</u></em> = 0.4 x 9.
Going off of step 3, you are going to do the exact same thing we did in step 3. Multiply 0.4 and 9, and you will get 3.6. The equation now looks like 21.6 = <u><em>3.6</em></u>.
Now, the inequality is false because the left-hand side and right-hand side are two completely different numbers. A bigger number cannot be equal to a smaller number.
Hope this helps!
An example of the theme of movement that relates to the city of San Francisco is the emigration of people to other parts of the country.
<h3>What is a theme?</h3>
It should be noted that a theme simply means the underlying message that's conveyed based on the information given in a story.
It should be noted that the theme of movement examines geographical exploration.
Here, an example of the theme of movement that relates to the city of San Francisco is the emigration of people to other parts of the country.
Learn more about theme on:
brainly.com/question/11600913
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Answer:
- 455 adult tickets
- 884 student tickets
Step-by-step explanation:
Let "a" represent the number of adult tickets sold. Then 1339-a is the number of student tickets sold. The revenue collected was ...
5a + 1(1339-a) = 3159
4a = 1820 . . . . . . subtract 1339, collect terms
a = 455 . . . . . . . . divide by 4; adult tickets sold
(1339-a) = 884 . . . . student tickets sold
455 adult tickets and 884 student tickets were sold.
Answer:

Step-by-step explanation:
I will assume that the shaded region is the fire pit
Given


Required
Determine the area of the fire pit
First, calculate the area of the big circle.

Area of the small is:

The area of the pit is:






