if 1 bottle of gas treatment (5.25 oz/135 ml) treats 21 gallons of gas, how much gas treatment would be used to treat 1 gallon of gas?

Respuesta :

Divide the given amounts by 21 to find the amount that would be used for 1 gallon.
135 ÷ 21 = 6.42857142857 ml
5.25 
÷ 21 = 0.25 0z
1 gallon of gas woud need 0.25 oz/ 6.42857142857 ml of gas treatment

Hope this helps (:
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