4.4+Buying+Beads+0910

Bhabesh Regmi January 17th 2009 Math 7B **//__4.4-Buying Beads__//**
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Type of bead Cost Amount of beads Spheres 12 cents 20 beads Cubes 12 cents 15 beads Cylinders 8 cents 10 What to do: Write an equation relating the cost(c) and the number of beads(x) for each type of bead. __Spheres__: C= //x// **x** 0.6 __Cubes__: C= //x// **x** 0.8 __Cylinders__: C= //x// **x** o.8

**//__Follow-Up__//** **1. ****Which unit rate would be most useful if you were trying o figure out the number of beads you could buy with a certain amount of money?** Ans: //The amount of beads you can buy per cent (x/c).// **2. ****Which unit rate would be most useful if you were trying to figure out how much money a certain amout of beads cost?** Ans: //The amount of money it would cost for every bead you buy (c/x).//
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