Question

Bottles of sparkling water usually cost $1.69 each. This week they are on sale for 4 for $5. You bought one last week and one this week. Did you pay more or less for the bottle this week?

Answer 1

Answer: You paid $0.44 less for the bottle this week than last week.

Step-by-step explanation: You paid $0.44 less for the bottle this week than last week.

In order to know if you paid more or less than you did the week before for the water, you need to find the unit cost this week.

This week you could buy 4 bottle for $5 which means that the effective cost of one bottle is:

= Cost / Number of bottle

= 5 / 4

= $1.25 per bottle

Last week you paid $1.69 for the bottle but this week you paid $1.25.

Difference is:

= 1.69 - 1.25

= $0.44

In conclusion, you paid $0.44 less for the bottle this week than the last week.

Answer 2

Answer: You payed less this week because if you divide 5 divided by 4 you get $1.25 for a bottle and last week you payed $1.69 so overall you saved money this week than last week

Step-by-step explanation: Read Above