40 ton x 2000 = 80,000 pounds
320000/8000 = 40 pounds per person
1)360 (400*.9)
2)342 (380*.9)
3)119 (140*.85)
4)28 (35*.8)
2/3 and 0.66666666666666666666666
Given:
c = cost
p = people
Spent $300
Formula: c=5p+215
Solving for how many people (p)
C=5P+215
(300)=5P+215 (Subtract 215 on both sides)
85=5P (Divide by 5 on both sides)
17=P
The answer is 17. 17 people can afford to host a birthday party.
