Question 1041175
Let {{{ C }}} = cost of making {{{ n }}} calculators
Let {{{ R }}} = revenue from sales of {{{ n }}} calculators
Let {{{ P }}} = profit from sales of {{{ n }}} calculators
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{{{ C = 650000 + 47n }}}
{{{ R = 63n }}}
{{{ P = R - C }}}
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(1)
To make a profit,
{{{ R > C }}}
{{{ 63n > 650000 + 47n }}}
{{{ 16n > 650000 }}}
{{{ n > 40625 }}}
This means that to make a profit, at least 40626
calculators must be sold
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(2)
If {{{ R = C }}} they break even
{{{ 63n = 650000 + 47n }}}
{{{ n = 40625 }}}
Sales of 40625 is the break even point
(3)
For (1) {{{ P > 0 }}}
For (2) {{{ P = 0 }}}