I am new to this site. I am not sure if my last post went thru, with my calculations for review, so I will copy and paste my entire query. Thanks for your assistance.

Question

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Additional questions: this is for a form I need to fill out regarding my medications. Help please and thank you.

If a bottle of 300 pills cost $17.40 … and you take 2 pills a day …

- How much is the cost per pill?
- How much is the cost per week?
- How much is the cost per month?
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If a bottle of 24 pills cost $16.87 … and you take 2 pills a day …

- How much is the cost per pill?
- How much is the cost per week?
- How much is the cost per month?
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If a bottle of 150 pills cost $27.95 … and you take 2 pills a day …

- How much is the cost per pill?
- How much is the cost per week?
- How much is the cost per month?
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If a bottle of 80 pills cost $16.14 … and you take 4 pills a day …

- How much is the cost per pill?
- How much is the cost per week?
- How much is the cost per month?
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If a bottle of 150 pills cost $15.29 … and you take 2 pills a day …

- How much is the cost per pill?
- How much is the cost per week?
- How much is the cost per month?
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If a bottle of 60 pills cost $22.15 … and you take 4 pills a day …

- How much is the cost per pill?
- How much is the cost per week?
- How much is the cost per month?
•Math - Ms. Sue, Sunday, September 4, 2016 at 12:38pm
I'll be glad to check your answers.

•Math - E, Sunday, September 4, 2016 at 2:20pm
Per pill for a start: ?
$17.40 - 5 or 6 cents
$16.87 - 70 cents
$27.95 - 18 cents
$16.14 - 20 cents
$15.29 - 10 cents
$22.15 - 37 cents

Thank you, Miss Sue.

•Math - E, Sunday, September 4, 2016 at 3:25pm

Is this right? thanks, Miss Sue.

$17.40-5 or 6 cents-per week: $.70 - per month: $2.80
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$16.87-70 cents-per week: $9.80 - per month: $ 39.20
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$27.95-18 cents-per week: $2.52 - per month: $10.08
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$16.14-20 cents-per week: $5.60 - per month: $22.40
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$15.29-10 cents-per week: $1.40- per month: $5.60
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$22.15-37 cents-per week: $10.36-per month: $41.44

Answer 1

You can round off your daily cost when stating it, but you should carry more accuracy when you then multiply it by 7 or 30

e.g.
#1
cost per pill = 1740/300 cents or 6 cents
cost for 2 pills = 2(5.8) = 11.6 or 12 cents
cost per week = 7(11.6) = 81.2 or 82 cents
cost per month = 30(11.6) = $3.48


last one:
cost per pill = 2215/60 = 36.92 cents
daily cost = 4(36.9166..) = $1.48
weekly cost = 7(147.66...) = $10.34
monthly cost = 30(147.666..) = $44.30

notice that by rounding off your cost per pill in the last question, you were off by about three dollars.

Check the others using my method.