Respuesta :

JonHenderson55
The answer is:  " x = 75 units ".
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Explanation:
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Set up the follow ratios, or proportions, as fractions:

x/ 63 = 50/42;   Solve for "x" ; 
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→  Reduce the "50/42" ;   " 50/42" = (50÷2) / (42÷2) = 25/21 .

Rewrite:  " x / 63 = 25 / 21 " .

Cross multiply:  Given:  "a/b = c/d " ;  "ad = bc" ; 

Thus, "21x = (63) * (25) ; 

Divide each side of the equation by "21" ; to isolate "x" on one side of the equation; and to solve for x" ; 
     
     " 21x / 21  =  [ 63 * 25 ] / 21 " ; 

Note:  "63/21 = 3 " ; 

So:    x =  3 * 25 ; 
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          x = 75 .
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The answer is:  " x = 75 units ".
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Answer:

Step-by-step explanation:

75 units

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