Mike surveyed 250 teenagers to find out their favorite food. He found that 76% of the teenagers surveyed like burgers. Part A: How many teenagers surveyed like burgers? Show your work. (4 points) Part B: In another survey, Jane found that 25% of the total number of teenagers surveyed like sandwiches. If 50 teenagers like sandwiches, what is the total number of teenagers that Jane surveyed? Show your work. (4 points) Part C: Give an example of a situation in which a percentage is greater than 100%. (2 points)
For part A, multiply 0.76 x 250
For part B, we know that 25% of 1/4th of 100%, so if 25% is 50, multiply 4 x 50.
For part C, you could change an improper fraction to a percent, and it would be over 100%
The price of gasoline in the US increased from: $1.35 per gallon in 1990 to $2.81 per gallon 2006. That is a price increase of 108% is this ok
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