Question

The cost of a party is $550. The price per person depends on how many people attend the party. Write an expression for the price per person if p people attend the party. The find the price per person if 25, 50, and 55 people attend the party.

Answer 1

The total cost = $550

If only one person attend the party, the cost is 550 ÷ 1
If two people attend the party, the cost is 550 ÷ 2 per person
If three people attend the party, the cost is 550 ÷ 3 per person
If four people attend the party, the cost is 550 ÷ 4 per person

If 'p' people attend the party, the cost is 550 ÷ p 

the cost per person = 550/p

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p = 25
cost per person = 550÷25 = $22

p = 50
cost per person = 550÷50 = $11

p = 55
cost per person = 550÷55 = $10