Ireally need with this, very long question. every morning 20 grams of ointment has to be applied to a 65cm thigh & 40 cm calf. every 6 hours 20% of the 20 grams have to be reapplied. how many grams of ointment must be applied every 6 hours. and how long will a 120 gram tube of ointment last if the ointment is applied for 12 hours a day every day.

4 grams every 6 he's a total of 28 grams per day the tub will last 4.2 days

Step-by-step explanation:

fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation: