Question

Save & Exit Certify Lesson: 4.1 Rates and Unit RatesQuestion 1 of 14, Step 1 of 10/14CorrectUse unit rates to determine the better buy and provide the unit price for your answer. Round your answer to the nearest hundredth, if necessary.$29.38 for 30 packs of gum$19.24 for 20 packs of gum

Answer 1

Solution: Better buy $ 19.24 for 20 packs of gum.

Analysis: As we want to compare two purchase options of packs of gum, we need to find the rate of each option. In this case, we want to find the rate: Price per 1 pack of gum. We find it calculating the total price between the number of packs of gum.

Option 1:

`Rate=(29.38)/(30)=0.9793\cong0.98`

Option 2:

`Rate:\text{ }(19.24)/(20)=0.962\cong0.96`

After we find both rates, let's compare them:

`0.98>0.96`

For that reason, we can assume the best purchase option is $ 19.24 for 20 packs of gum.