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
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.
To calculate the number of bottles of medicine you need to buy, first find out how many tablets your sister will need over the three weeks.
Step 1: Calculate the total number of hours in three weeks.
Three weeks consist of 21 days. Since you need to give the medicine every 8 hours, multiply the number of days by 24 to get the total hours:
21 days x 24 hours/day = 504 hours
Step 2: Calculate the number of doses your sister needs over three weeks.
Divide the total number of hours (504) by the time interval between doses (8 hours):
504 hours / 8 hours/dose = 63 doses
Step 3: Calculate the total milligrams of medicine needed over three weeks.
Multiply the number of doses (63) by the dosage of each dose (550mg):
63 doses x 550mg/dose = 34,650mg
Step 4: Calculate the number of tablets needed to reach the required dosage.
Divide the total milligrams needed (34,650mg) by the dosage of each tablet (225mg):
34,650mg / 225mg/tablet ≈ 154 tablets
Step 5: Calculate the number of bottles needed to get 154 tablets.
Since each bottle contains 8 tablets:
154 tablets / 8 tablets/bottle ≈ 20 bottles
Step 6: Calculate the cost of the medicine.
Multiply the number of bottles (20) by the cost per bottle (K10.95):
20 bottles x K10.95/bottle = K219.00
Therefore, to save your sister and provide her with the required medication, you will need to buy approximately 20 bottles of medicine, which will cost you K219.00.