Question 225605
X+Y=7
X=7-Y
275x+400y=2300
275(7-Y)+400Y=2300
1,925-275Y+400Y=2300
125Y=2300-1,925
125Y=375
Y=375/125
Y=3 DAYS IN DALLAS.
X-3=4 DAYS IN SAN ANTONIO.
PROOF:
275*4+400*3=2,300
1,100+1,200=2,300
2,300=2,300