A homeowner is mixing vinegar with water to dissolve calcium deposits around a bathroom sink. The original formula calls for 10 ounces of vinegar
mixed with 30 ounces of water. The homeowner wants to make a stronger
mixture by adding more vinegar (variable v). Which equation will show
"total water / total vinegar"
30/(10 + v)
(30 + v) / 10
(30 + v) / (10 + v)
30/10

30/(10 + v)

Step-by-step explanation:

The original formula calls for 30 ounces of water and 10 ounces of vinegar. To make it stronger they are only adding an unknown amount of vinegar (v).

the last choice

step-by-step explanation:

13

step-by-step explanation:

divide the cost of the total of sodas you bought by the cost of one soda, for example:

$24.57 divided by $1.89 is 13 which means you bought 13 sodas