Question

There is a parade in town there are Large floats and small floats. Large floats are 30ft, small floats are 15ft and there has to be a 10ft space between each float. The parade must be at least 150ft long, but less than 200ft long. What combinations of small and large floats are possible? (They're 7 combinations)
Please help.):

Answer 1

i think your problem is
150<=n(30+10)+m(15+10) -10 <=200

Answer 2

160<=40n+25m<=210

Answer 3

n=0 then m can be m=7 and m=8

Answer 4

160-40n<= 25m <= 210-40n
if n=0
160<= 25m <= 210 m=7 and m=8
if n=1
120 <=25m <= 170 m= 5 and m=6
and so on

Answer 5

Yeah, I guess so... lol. Sooo how should I write it down.?

Answer 6

set n=2,3,..
in
160-40n<= 25m <= 210-40n
then you can find m for each of n as i illustrate at above

Answer 7

Ok , that makes sense. Haha, I really apreciate you helping me.(: Thankss.

Answer 8

im not sure, you can help from other people

Answer 9

@precal

Answer 10

n=Number of large floats
m=Number of small floats
i tack it
1) 0 of large floats and 7 of small floats
2) 0 of large floats and 8 of small floats
3) 1 of large floats and 5 of small floats
4) 1 of large floats and 6 of small floats