December+Challenges

December 12th School Picture Time A school in Japan has 147 students. Next week, a school photographer will be there to take photos of everyone.

The photographer is trying to figure out how much film he should buy. He can buy film in rolls of 24 exposures and 36 exposures. He can buy rolls of 24-exposure film for 500 yen and 36-exposure film for 800 yen. Tell him how he should buy the film.

December 5th Vacation Time

The Carter Family is going on vacation to visit friends in Florida. The plane tickets are bought, the hotel rooms are reserved, and their neighbors have agreed to feed their cat and water their plants while they are away. There is just one thing left to do: rent a car.

They will need a car for Thursday, Friday, Saturday and Sunday. They plan to drive the car about 800 miles. There are 3 companies from which they can rent a car, but they want to spend the LEAST amount of money possible.

Use the information below to determine the better buy. Then write the Carter family a letter telling them which rental company they should use and why.

Awesome Autos $45 for each week day $15 each weekend day $10 for every 100 miles driven

Cozy Cars $45 each weekday $20 each weekend day $5 for every 100 miles driven

Royal Rentals $45 each day No charge for mileage HINT: Do NOT solve the problem with the algorithm and then show me how to use addition or subtraction to get to the same answer! You need to show strong understanding of MULTIPLICATION.