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IrinaK [193]
3 years ago
12

5(x + 7) = 15 what is the value of x

Mathematics
2 answers:
Sindrei [870]3 years ago
6 0

Step-by-step explanation:

5(x + 7) = 15

x+7=3

x=-4!!!!!!

sukhopar [10]3 years ago
4 0

Answer:

x = -4

Step-by-step explanation:

<u>Solve for x</u>

  • 5 ( x + 7 ) = 15

Divide each side by 5

  • 5( x + 7 ) ÷ 5 = 15 ÷ 5
  • x + 7 = 3

subtract 7 from both side

  • x + 7- 7 = 3 - 7
  • x = -4
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Which expression represents "4 less than the product of 2 and a number,<br> e"?
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Answer:

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Step-by-step explanation:

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3 years ago
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a triangle has verticals A(-5,-4), B(2,6), C(4,-3) The center of dilation is the origin and (x,y) (3x,3y). what are the vertices
Gnom [1K]

A' (3(-5),3(-4))= (-15,-12)

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1 year ago
Item 10 Find the amount of time. I=$450, P=$2400, r=7.5%
Alex787 [66]
The answer is:  "2.5 years" . 
___________________________________________________
  Note:   I = P * r * t  ;    { " Interest = Principal * rate * time "} ; 

          →     Solve for "t" {"time", in years} ;  

Divide each side of the equation by "{P * r}"  ;  
   to isolate "t" on one side of the equation ;

→  I / (P * r)  = {P * r * t) / (P * r} ; 

to get:  " I / (P * r) = t " ;  

  ↔  t = I / (P * r) ; 

Given:  I = $450 ;  
  
            <span>P = $2400 ; 

            r = 7.5% = 7.5/100 = 0.075 ; 

Plug in these values into the formula to solve for the time, "t" :

        </span>→  t  =  I  /  (P  *  r )   ;  

                 =  $450  /   (<span>$2400 * 0.075) ;

                 =  </span>$450  /   ($2400 * 0.075) ;

                 =  $450 / $180 ; 

                 =  $45 / $18 ; 

                 =  ($45 ÷ 9) / ($18 ÷ 9) 

                 =  $5 / $2 ; 

                 =  2.5  ; 

        →  t  =  2.5 years.
_______________________________________________________
The answer is:  "2.5 years" . 
_______________________________________________________
7 0
3 years ago
42 /48 in simplest form
zloy xaker [14]

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<span>Factors of 42 are:
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<span>To simplify you divide numerator and denominator into the GCF</span>

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<span>42/48 = 7/8</span>

<span>Hope this helps. :)
</span>

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jonny [76]

Answer:

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Step-by-step explanation:

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