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Lesechka [4]
4 years ago
15

The sum of 18 and twice a number use n to rep Repesent unknown number

Mathematics
2 answers:
Romashka-Z-Leto [24]4 years ago
7 0

18+2n. For sure hope it helps

Ivanshal [37]4 years ago
7 0

18+2n. Hope this helps!

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What is x for Unknown angle problems with algebra?
yulyashka [42]

The value of x=20

Step-by-step explanation:

We need to find the value of x

We are given a right angle which is equal to 90°

So, all three angles must sum to 90°

Our equation will be:

x+2x+(x+10)=90

Solving and finding value of x

x+2x+x+10=90\\4x=90-10\\4x=80\\x=80/4\\x=20

So, the value of x=20

Keywords: Angles

Learn more about angles at:

  • brainly.com/question/3202836
  • brainly.com/question/7151553

#learnwithBrainly

5 0
3 years ago
hannah and mallory are selling boxes of cookies for a school fundraiser. each box costs the same amount. hannah sells 14 boxes.
aleksley [76]

The cost per box of cookies is $3.75

The total amount Hannah raised from the sales of cookies is $52.50

The total amount Mallory raised from the sales of cookies and donations is $88.50

In order to determine the cost per box of cookies, take the following steps:

The first step is to determine the total sum of the boxes sold by Hannah and Mallory

Sum of the boxes sold = 14 + 22 = 36 boxes

36 boxes were sold by Hannah and Mallory

The second step is to determine the total cost of the 36 boxes sold.

Total cost of 36 boxes = total amount raised - donation

$141 - $6 = $135

The third step is to determine the total cost of each box

cost of one box = total cost of 36 boxes / total number of boxes

135 / 36 = $3.75

The total amount Hannah raised = cost per box x number of boxes she sold

14 x $3.75 = $52.50

The total amount Mallory raised = amount raised from the sale of cookies + donation

amount raised from sales = cost per box x number of boxes she sold

22 x $3.75 = $82.50

Total amount = $82.50 + $6 = $88.50

A similar question was answered here: brainly.com/question/10915476?referrer=searchResults

8 0
3 years ago
Whats the area of a polygon with vertices A(2,3) B(12,3) C(6,0) and D(2,0)
Vanyuwa [196]
This shape is trapezoid

top of the trapezoid is 10 (12-2)

and the bottom is 4 (6-2)

the height in 3 (3-0)


so the area will be
((10+4)  \times 3) \div 2  \\  = (14 \times 3)  \div 2 = 42 \div 2 \\  = 21
the area is 21
6 0
4 years ago
Which statement about the lines is true?
Novay_Z [31]
C. Got you man.

Lemme know if I’m right
5 0
3 years ago
(HURRY PLS 100 POINTS)
-BARSIC- [3]

Answer: Currently my battery is about to die but i can answer part A for you real quick!

Step-by-step explanation:

Part A- Scatter plot            Explanation: A scatter uses dots to represent values for two different numeric variables. which fits the data the most.  

6 0
2 years ago
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