Question 903439
m+p=600,
5.75*m+7*p=4075
m=600-p
5.75*(600-p)+7*p=4075
3450.0-5.75p+7*p=4075
1.25*p=625.0
p=500.0
m=600-p
m=100 at $5.75 and  p=500 at $7
check
100+500=600
5.75*m+7*p=4075
5.75*100+7*500=4075
575.0+3500=4075
4075.0=4075
ok