Respuesta :

stuf2013010299

Answer:

s = 6

Step-by-step explanation:

[tex]\frac{21}{14} =\frac{s}{4}[/tex]

1- cross multiply

21 x 4

= 84

-------------

14 x s

= 14s

SO..

14s = 84

2- to find 's' divide both sides by 14

[tex]\frac{14s}{14} = \frac{84}{14}[/tex]

s = 6

s=6
21/14 simplified is 3/2 after you divide by 7. now you need to find a fraction that is equal to 3/2 with a denominator of 4. to do this you multiply both numbers in the fraction 3/2 by 2. you get 6/4. s=6.
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