7. a local book store is having a promotion on calendars being sold for a charity. you can buy 6 calendars…

7. a local book store is having a promotion on calendars being sold for a charity. you can buy 6 calendars for $114 or 10 calendars for $160. which is a better buy and explain your reasoning.

7. a local book store is having a promotion on calendars being sold for a charity. you can buy 6 calendars for $114 or 10 calendars for $160. which is a better buy and explain your reasoning.

Answer

Explanation:

Step1: Calculate unit - price of 6 - calendar deal

Find the price per calendar when buying 6 for $114. Divide the total price by the number of calendars. $114\div6 = 19$ (dollars per calendar)

Step2: Calculate unit - price of 10 - calendar deal

Find the price per calendar when buying 10 for $160. Divide the total price by the number of calendars. $160\div10=16$ (dollars per calendar)

Step3: Compare unit - prices

Compare the two unit - prices. Since $16<19$, the 10 - calendar deal is cheaper per calendar.

Answer:

Buying 10 calendars for $160 is a better buy because the unit price of each calendar in this deal ($16) is less than the unit price of each calendar in the 6 - calendar deal ($19).