Question

Helene bought 6 bottles of juice. The bottles were on sale at 10 bottles for $12. Which explanation correctly tells how to calculate the cost of 6 bottles? A. Step 1 Multiply $12 by 10 to figure out the cost of 1 bottle. Step 2 Divide that cost by 6. B. Step 1 Divide $12 by 10 to find out the cost of 1 bottle. Step 2 Multiply that cost by 6. C. Step 1 Multiply $12 by 10 to find out the cost of 1 bottle. Step 2 Multiply that cost by 6. D. Step 1 Divide $12 by 10 to find out the cost of 1 bottle. Step 2 Divide that cost by 6.

Answer 1

Option: B is the correct answer.

B. Step 1: Divide $12 by 10 to find out the cost of 1 bottle.

Step 2 : Multiply that cost by 6.

Explanation:

The cost of 10 bottles is: $ 12.

• This means that the cost of 1 bottle is:

$ (12/10)=$ 1.2

( Since the cost of 1 bottle will be less and hence the total cost must be divided by the number of items in order to obtain the cost of 1 item)

• and similarly in order to find the cost of 6 items we need to multiply the cost of 1 item by 6.

Hence, cost of 6 bottles of juice is: $ (1.2×6)=$ 7.2

Hence, the correct answer is:

B. Step 1: Divide $12 by 10 to find out the cost of 1 bottle.

Step 2: Multiply that cost by 6.

Answer 2

she wanted to buy 6 bottles.
the cost of 10 bottles was $12.
therefore we need to find the cost of one bottle and then find the cost for 6 bottles.
if 10 bottles cost - $ 12
then 1 bottle costs - $ 12 / 10 bottles

here we divided 12 by 10 , cost of 1 bottle is 12/10 to find the cost of 6 bottles we have to multiply by 6 .12 / 10 x 6

correct answer is therefore B. divide 12 by 10 and then mulitply by 6