Question 107722
B = number of bracelets ordered
N = number of necklaces ordered
{{{B + N = 120}}} This is given
{{{B = 120 - N}}}
also
{{{4B + 8N = 560}}} Given
{{{4(120 - N) + 8N = 560}}}
{{{480 - 4N + 8N = 560}}}
{{{480 + 4N = 560}}}
{{{4N = 80}}}
{{{N = 20}}} answer
{{{B = 120 - N}}}
{{{B = 100}}} answer
She ordered 20 necklaces and 100 bracelets
check answers by plugging back into original equations