Question 909696
{{{(1755/200)(gram/cc)=8.775}}} grams/cc, the required target density of the bronze brick.


{{{highlight_green(c*8.96+t*7.385=1755)}}}, grams as specified
and
{{{highlight_green(c+t=200)}}}, cubic centimeters as specified



SOLVING STEPS
{{{t=200-c}}};
;
{{{8.96c+7.385(200-c)=1755}}}
{{{8.96c+1477-7.385c=1755}}}
{{{(8.96-7.385)c=1755-1477}}}
{{{1.575c=278}}}
{{{c=278/1.575}}}
{{{highlight_green(c=176.5)}}}
-
{{{t=200-c}}}
{{{t=200-176.5}}}
{{{highlight_green(t=23.49)}}}


The density of the copper, and the volume of brick to make limit the accuracy to three significant figures, so the final results are:
{{{highlight(c=177)}}} cc for the copper
{{{highlight(t=23)}}} cc for the tin