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WARRIOR [948]
4 years ago
14

Can someone please explain why this is incorrect? Isn’t (2x+5)(x+1) the same as (x+1)(2x+5)?

Mathematics
1 answer:
Ne4ueva [31]4 years ago
4 0

Answer:

2(2x+5) (x+1) = 2(x+1)(2x+5)

Step-by-step explanation:

4x^2 +14x+10

Factor out the 2

2(2x^2 +7x+5)

2(2x+5) (x+1)


You need to keep the 2 that you factored out

2(2x+5) (x+1) = 2(x+1)(2x+5)  by the  Commutative Property of Multiplication

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Value rent a car rents a luxury car at a daily rate of $37.49 plus 20 cents per mile. A business person is allotted $130 for car
alex41 [277]

Answer:

In the allocated budget of $130 , the business person can travel 462.55 miles a day.

Step-by-step explanation:

The daily rate of car service = $37.49

Cost per mile of the car   = 20 cents   = $ 0.20

Total allocated budget  for each day  = $130

Now, out of the total budget :

The actual travelling budget  = Total Budget  - Daily car rate

                                                =  $130  -  $37.49  

                                                =   $92.51

So, the actual travelling budget each day = $92.41

Now, \textrm{Number of total miles traveled }  = \frac{\textrm{Actual traveling budget}}{\textrm{Rate per mile }}

= \frac{92.51}{0.20}   = 462.55

or, the number of miles traveled  = 462.55 miles

Hence, in the  allocated budget of $130 , the business person can travel 462.55 miles a day.

7 0
4 years ago
HELP FIND THE VALUE OF “x”
Inga [223]

Answer:

ok these are the same angles so they are equal so

4x-9=3x+29

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8 0
3 years ago
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Citrus2011 [14]
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7 0
3 years ago
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Draw a triangle that satisfies this condition: The ratio of the interior angles is 7:11:12
denpristay [2]
The sum of the interior angles of a triangle is 180 degrees.
1.) Translating the problem into equation:
             7:11:12 = 180 degrees
      7x+11x+12x = 180 degrees; Where x = missing number
                    30x = 180
               30x/30 = 180/30 divide both sides by 30
                        x = 6
2.) Substitute the values:
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7(6)+11(6)+12(6) = 180
           42+66+72 = 180
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3.) Therefore, the angles should be 42 degrees, 66 degrees and 72 degrees.
4.) See attached drawing of triangle

7 0
3 years ago
What is the equation 3y – 6x = 9 written in the form y=mx+b ?
Oduvanchick [21]

Answer:

A. y = 2x + 3

Step-by-step explanation:

3y – 6x = 9

+ 6x + 6x

____________

3y = 6x + 9

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3 3

y = 2x + 3 >> CORRECT ANSWER

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