Question

Vinnie is searchng online for airline tickets. Two weks ago, the cost to fly from Denver to Boston was $250. Now the cost is $365.

1. What is the percent increase?

Answer: The percent increase ofthe airline ticket is %. (Just write the number, not the % sign)

2. What would be the percent increse if the airline charges an additonal $50 baggage fee withthe new ticket price?

Answer: The percent increase of he airline ticket with the baggage fee is %

Answer 1

I'll do the first one to get you started.

A = old price = 250

B = new price = 365

C = percent change

C = [ (B-A)/A ] * 100%

C = [ (365 - 250)/250 ] * 100%

C = (115/250) * 100%

C = 0.46 * 100%

C = 46% increase

We have an increase because the resulting C value is positive. If C were negative, then we'd have a percent decrease.