Question 622114
Let anns pay be a and mary's pay be m
You are told
{{{6a + 6 = 4m}}}
{{{(3a+3)/2 = m}}}
You are also told
{{{14a + 15m = 306}}}
{{{14a + 15((3a+3)/2)= 306}}}
{{{14a + (45a+45)/2 = 306}}} multiply through by 2
{{{28a + 45a + 45 = 612}}}
{{{73a = 567}}}
{{{a = 7.767}}} per day
{{{((3*7.767)+3)/2 = m}}}
{{{13.15 = m}}}
Check your answer
is {{{14 * 7.767 + 15*13.15 = 306}}}??
{{{108.7 + 197.25 = 306 }}} or close enough to allow for the rounding we did?