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djverab [1.8K]
3 years ago
13

twice the sum of a number and 2 is equal to three times the difference of the number and 3. Find the number

Mathematics
1 answer:
Lana71 [14]3 years ago
3 0
2(x+2)=3(x-3)
2x+4=3x-9
2x=3x-13
-x=-13
x=13

The number is 13
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FIND M∠R (GIVING BRAINLIEST, 25 PTS)
riadik2000 [5.3K]

Answer:

<h2>76</h2>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • triangles
  • equation
  • PEMDAS
<h3>given:</h3>
  • M\angle T=2x+2
  • M\angle R=3x+1
<h3>tips and formulas:</h3>
  • this is an isosceles triangle since two sides are equal therefore \angle T=\angle S
  • a triangle contains 180°
<h3>let's solve:</h3>

according to the question

2x+2+2x+2+3x+1=180

solve:

  1. collect like terms:7x+5=180
  2. substract 5 from both sides:=>7x+5-5=180-5=>7x=175
  3. divide both sides by 7: =>7x/7=175/7
  • x=25

given:

M∠R=3x+1

substitute the value of x

3×25+1

75+1

76

7 0
3 years ago
Read 2 more answers
3x + 2y = 4<br> 4x + 3y = 7
iren [92.7K]
Y=0 I think I really don’t know
7 0
3 years ago
The measure of angle A is 62 degrees . Find the measures of the complement and supplement of angle A
Keith_Richards [23]

Answer:

Complement: 118°. Supplement: 28°

Step-by-step explanation:

To determine the supplement, subtract the given angle from 180.

180 - 62 = 118

To determine the complement, subtract the given angle from 90.

90 - 62 = 28

6 0
3 years ago
Y=2x^2+16x+30 axis of symmetry​
Elanso [62]

Answer: The axis of symmetry would be -4. We can easily find it by graphing the equation.

3 0
3 years ago
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AURORKA [14]
I'm not sure what your four step plan is, but here is how I would solve it:

50 rooms on each upper deck x 2 decks = 100 rooms

100 rooms x 1000 per room = 100,000

That leaves 48 rooms on the 2 lower decks, so 48/2=24 rooms per lower deck

48 rooms x 900 per room = 43,200

100,000 + 43,200 = $143,200 (maximum room sales amount)

Hope this helps!! :)
4 0
4 years ago
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