Respuesta :

you can set up a fraction. [tex] \frac{520}{4} = \frac{x}{.6} [/tex]

Cross multiply

[tex]312=4x[/tex]

Divide both sides by 4

x=78

$78 to plant 3/5 an acre of corn
3/5 acres of corn* ($520/ 4 acres)= $78

It would cost $78 to plant 3/5 acres of corn~
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