The number of candies bought determines the cost of the candies, given
that the number of candies and the cost have a proportional relationship.
Reasons:
The cost of candy canes = 0.89 per dozen
Required:
The cost of candy canes that would go round a school of 400 students.
Solution:
0.89 gives 12 candies.
Therefore;
[tex]\displaystyle The \ cost \ of \ 1 \ candy \ cane =\frac{0.89}{12 \ candy \ canes} = \mathbf{\frac{89}{1200} \ per \ candy}[/tex]
Which gives;
[tex]\displaystyle The \ cost \ of \ 400 \ candy \ canes = \frac{89}{1200} \ per \ candy \times 400 = \frac{89}{3} = \mathbf{29\frac{2}{3}}[/tex]
The cost of candies for the school with 400 students is [tex]\displaystyle 29\frac{2}{3}[/tex] = [tex]\underline{29.\overline 6}[/tex]
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