Question

Lauren recorded the price of a gallon of milk at two grocery stores for four weeks.

show your work!!


On average, which grocery store had a better price for milk and by how much?


Discount Mart by $0.08 per gallon


Super Store by $0.08 per gallon


Discount Mart by $0.40 per gallon


Super Store by $0.40 per gallon

Answer 1

Hi,

Discount Mart:

2.99 + 3.19 + 3.55 + 3.05= 12.78

12.78 ÷ 4= 3.195

The average price of milk at Discount Mart is 3.195$

Super Store:

3.19 + 2.79 + 2.99 + 3.49= 12.46

12.46 ÷ 4= 3.115

The average price of milk at Super Store is 3.115$

3.195 - 3.115= 0.08

Therefore we can see that Super Store had a better price on average than Discount Mart by 8 cents.

Your final answer is: "Super Store by $0.08 per gallon"

Hope I could help~ have a good day/night :]

Answer 2

Start by finding the average of both stores for the 4 week time:

average = values / # of values


average for Discount Mart = $2.99 + $3.19 + $3.55 + $3.05 / 4 = $12.78 / 4 = $3.20 on average

average for Super Store = $3.19 + $2.79 + $2.99 + $3.49 / 4 = $12.46 / 4 = $3.12

$3.20 > $3.12

$3.20 - $3.12 = $0.08 or 8 cents

Discount Mart > Super Store

Super Store had a cheaper price for milk by $0.08 per gallon on average.

Let me know if you have any questions!