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olga2289 [7]
2 years ago
6

The perimeter of the rectangle below is 42 inches. Find the value of x.

Mathematics
1 answer:
elena-s [515]2 years ago
4 0

Answer:

x=7

Step-by-step explanation:

P=5x+x-3=42

=6x-3=42

=6x=45

x=45/6

x=7.5 closest answer is 7

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Use a Venn diagram to answer the question. A survey of 180 families showed that 67 had a​ dog; 52 had a​ cat; 22 had a dog and a
Mice21 [21]

Answer:

There are 13 families had a parakeet only

Step-by-step explanation:

* Lets explain the problem

- There are 180 families

- 67 families had a dog

- 52 families had a cat

- 22 families had a dog and a cat

- 70 had neither a cat nor a​ dog, and in addition did not have a​

 parakeet

- 4 had a​ cat, a​ dog, and a parakeet (4 is a part of 22 and 22 is a part

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* We will explain the Venn-diagram

- A rectangle represent the total of the families

- Three intersected circles:

 C represented the cat

 D represented the dog

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- The common part of the three circle had 4 families

- The common part between the circle of the cat and the circle of the

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- The common part between the circle of the dog and the circle of the

 parakeet only had a families

- The common part between the circle of the cat and the circle of the

 parakeet only had b families

- The non-intersected part of the circle of the dog had 67 - 22 - a =

  45 - a families

  had dogs only

- The non-intersected part of the circle of the cat had 52 - 22 - b =  

  30 - b families

  had cats only

- The non-intersected part of the circle of the parakeet had c families

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- The part out side the circles and inside the triangle has 70 families

- Look to the attached graph for more under stand

∵ The total of the families is 180

∴ The sum of all steps above is 180

∴ 45 - a + 18 + 4 + 30 - b + b + c + a + 70 = 180 ⇒ simplify

- (-a) will cancel (a) and (-b) will cancel (b)

∴ (45 + 18 + 4 + 30 + 70) + (-a + a) + (-b + b) + c = 180

∴ 167 + c = 180 ⇒ subtract 167 from both sides

∴ c = 180 - 167 = 13 families

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5 0
3 years ago
Find the width of a rectangular prism if the volume is 340, the length is 17, and the height is 5.
Margarita [4]
I hope this helps you



Volume = height. width. length


340=5.width.17


width =340/17.5


width = 4
8 0
3 years ago
Each of the 25 students in Mr. McDonald’s class sold 16 raffle tickets. If each ticket costs $15, how much money did Mr. McDonal
REY [17]
So do
25x16=400
this shows how many raffle tickets were sold all together
Then do 400x$15 =$6000
So all together they raised $6000
6 0
3 years ago
Read 2 more answers
Brenda considers geometric figures and concepts that are related to lines. Which terms are considered undefined?
Umnica [9.8K]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Starks sculpture 30 cubed is a cube with sides 30 inches long. Whats its volume​
Zolol [24]

Answer: 27000\text{ cubic inches}

Step-by-step explanation:

Given : Starks sculpture 30 cubed is a cube with sides 30 inches long.

We know that the volume of a cube is given by :-

\text{Volume}=(side)^3

Then , the volume of Starks sculpture 30 cubed will be :

\text{Volume}=(30)^3\text{ cubic inches}

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\text{Volume}=27000\text{ cubic inches}

Hence, the required volume = 27000\text{ cubic inches}

7 0
3 years ago
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