Question 937307
Maybe this is a linear relation. They don't
say so, but if it is, I can say:
Let {{{ x }}} = kg of corn needed to feed
{{{ 2800 }}} chickens
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I can set up the ratio:
{{{ 5000 / 2800 = ( 2x-30 ) / x }}}
Multiply both sides by {{{ 2800x }}}
{{{ 5000x = 2800*( 2x - 30 ) }}}
{{{ 5000x = 5600x - 84000 }}}
{{{ 600x = 84000 }}}
{{{ x = 140 }}}
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140 kg of corn can feed 2800 chickens
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check:
{{{ 5000 / 2800 = ( 2x-30 ) / x }}}
{{{ 5000 / 2800 = ( 2*140-30 ) / 140 }}}
{{{ 25/14 = 250/140 }}}
{{{ 25/14 = 25/14 }}}
OK