The rate of discount, R, can be determined using the formula , where P is the regular price of an item and D is the discounted price. Find the rate of discount on a sweater with a regular price of $39 that is on sale for $27. If necessary, round to the nearest hundredth.
0.69
1.31
0.31
1.69
The rate of discount can be determined using the formula R = (P - D) / P.
Given that the regular price P is $39 and the discounted price D is $27, we can substitute these values into the formula to find the rate of discount.
R = (39 - 27) / 39
R = 12 / 39
R ≈ 0.31
Therefore, the rate of discount on the sweater is approximately 0.31, which corresponds to answer choice C.