Question

1) The cost of a charm bracelet is $12 without the charms. There is an additional cost of $6 for each charm added to the bracelet. Write an equation that could be used to find how many charms, c, are on a bracelet that costs $96 then calculate how many charms they can buy.
2) Nine more than a number is 58. Write and solve an equation to determine the number. (Writing the equation is required.)

Answer 1

The equation used to model the cost of the bracelet would be y = 6c + 12, in which c is the number of charms on the bracelet. This is because even with no charms (c = 0), the bracelet still costs 12, which is the constant.

To solve for how many charms you can get with $96, you can plug 96 in for y and solve.

y = 6c + 12

96 = 6c + 12

84 = 6c

14 = c