What fraction of the total sales for the four weeks is used to pay for supplies for each business? Write the answer in percent form as well.

Question

Puterbaugh's Pizzeria:

Total sales for four weeks: $4,920

Total money used on supplies for four weeks: $3038.68

 

Marino's Pizza:

Total sales for four weeks: $6,687.90

Total money used on supplies for four weeks: $3,362.60

Answer 1

The fraction of sales used for supplies is  supplies/sales

 

Peterbaugh's = 3038.68/4920

Marino's       = 3362.60/6687.90

 

You can reduce the above fractions if needed

Or, if your teacher doesn't like decimals in fractions you can

change the numbers to improper fractions and work it from there:

 

Peterbaugh's:  (3038 68/100)/4920

                    = (3038 17/25)/4920

                    = (75967/25)/4920

                    = 75967/[(25)(4920)]

                    = 75967/123000

                  

Marino's:  (3362 60/100)/6687 90/100)

              = (3362 3/5)/(6687 9/10)

              = (16813/5)/(66879/10)

              = (16813/5)(10/66879)

               = 16813(2)/66879

               = 33626/66879

 

 

For the percentages:

 

Supplies = x%( sales)

Supplies = (x/100)sales

 

x = (supplies/sales)(100)

 

Puterbaugh's:  x = (3038.68/4920)(100) = 61.8%

Marino's:         x = (3362.60/6687.90)(100)= 50.3%

 

Hope this helps.  Good luck with your class.