URGENT! Drawing graph from linear programming

Hi... i hope someone can help me because I'm sure i'm working this out correctly but these two lines should cross!!!! can anyone tell me if I'm going wrong anywhere...

Plotting 0.7c + 0.8t = 56

setting t=0

0.7c= 56

c= 56/0.7

c= 80

setting c=0

0.8t= 56

t= 56/0.8

t = 70

so with C on the y axis i have (0,80) and (70,0)

Plotting 0.4c + 0.5t =60

setting t=0

0.4c=60

c= 60/0.4

c= 150

setting c=0

0.5t=60

t= 60/0.5

t= 120

so with C on the y axis i have (0,150) and (120,0)

as you can see these two lines would not cross on a graph!!! these are definately the right numbers... unless i'm doing something wrong that i can't figure out i can only asume i've been given incorrect numbers!! :confused:

If anyone can shed some light Id be really greatful.. this is driving me nuts, its for some uni c/w due in VERY soon and there are about 25 marks of follw up question regarding feasle regions that i need the correct graph for!

Thank you in advance!