I need help ASAP! We can calculate E, the amount of euros that has the same value as D U. S. dollars, using
E= 17/20 D
How many euros have the same value as 1 U. S. dollar?

How many U. S. dollars have the same value as 1 euro?

How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide?   original added new amount of peroxide 0.96 liters x 0.96 + x amount of solution 12 liters x 12 + x 0.18 liter 1.14 liters 1.92 liters 2.10 liters