Question

question: 48
an online store is offering a special discount promotion. a merchandise order totaling less than $50 will receive a 15% discount, and an order totaling $50 or more will receive a 25% discount.
which of these correctly describes purchases made at the store during this promotion? select two that apply.
a purchase of 1 pair of boots selling
a for $108 will be charged as $27 after the promotion is applied.
this is the result of finding the amount of the discount on this purchase, not the amount that the customer will be charged.
a purchase of 4 pairs of socks selling
b for $9 a pair will be charged as $30.60 after the promotion is applied.
the selling prices of the items total 4($9) = $36, so the 15% discount is applied. this means that the customer will be charged $36 - 0.15($36) = 0.85($36) = $30.60
a purchase of 2 shirts selling for $26
c each will be charged as $44.20 after the promotion is applied.
this is the result of applying the 15% discount to this purchase. the items total 2($26) = $52 which should receive the 25% discount.
a purchase of 3 books selling for $18
d each will be charged as $20.25 after the promotion is applied.
this is the result of applying the 25% discount to this purchase. the items total

Explanation:

Step1: Calculate the total price before discount

The selling prices of the items total \(4\times9 = 36\) dollars.

Step2: Calculate the price after discount

Since \(36<50\), a 15% discount is applied. The customer will be charged \(36-0.15\times36=36\times(1 - 0.15)=36\times0.85 = 30.60\) dollars.

Answer:

B. A purchase of 4 pairs of socks selling for $9 a pair will be charged as $30.60 after the promotion is applied.