Math 212

Group work problems

Friday 1-18-13

Sit with your randomly-assigned partner(s).

Consider the following sequence of sums:

Notice that S(1) = ½ and S(2) = 2/3 . Find the value of S(3).

Find the values of S(4) and S(5).

Introduce a variable and find a formula for generating the sequence. [For example, the sequence 3, 6, 9, 12, 15, ... is generated by the formula 3*n, where n is a positive integer.]

Barb is at the grocery. She picks up a head of cabbage, a bell pepper, and a bunch of bananas. All together, the total weight of the produce is 7.75 pounds. If the cabbage weighs 50% more than the bananas, and the bananas weigh 12 times as much as the pepper, find the weight of each.

Solve by guess and check or some other non-algebraic strategy.

Solve by algebra.