Your sister is sick and your doctor prescribe medicine.you need to give your sister 550mg of medicine every 8 hours for the next three weeks.The medicine is only sold in 225mg tablets.A bottle of 8 tablet cost k10.95. How many bottles of medicine should you buy to save your sister from the grip of death And how much will it cost you

Answer 1

To calculate how many bottles of medicine you should buy, we need to determine the total amount needed over the three weeks.

First, let's calculate the number of tablets needed per day:
550mg / 225mg = 2.44 tablets per dose (rounded to 2 tablets)

Now, let's calculate the number of doses per day:
24 hours / 8 hours = 3 doses per day

Therefore, the total number of tablets needed per day is:
2 tablets/dose x 3 doses/day = 6 tablets per day

Now, let's calculate the total number of tablets needed over three weeks:
6 tablets/day x 7 days/week = 42 tablets per week
42 tablets/week x 3 weeks = 126 tablets

Next, let's calculate the number of bottles needed:
126 tablets / 8 tablets/bottle = 15.75 bottles

Since you can't buy a fraction of a bottle, you would need to buy 16 bottles to maintain a three-week supply.

To calculate the cost, let's multiply the number of bottles by the cost of each bottle:
16 bottles x K10.95/bottle = K175.20

Therefore, you would need to buy 16 bottles of medicine, which would cost you K175.20.