16) How much water would you need to add to 2.5 gallons of vinegar to make a 10% solution of vinegar and water? 25 gallons
5 gallons
22.5gallons
2.5gallons

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

a. she will receive a refund of $278.

step-by-step explanation: