Just confused on whether to divide or multiply at certain steps

Question

Mark has about 1,000 peanut butter candy bars that he wants to sell for 10 dollars each. He's allergic to peanuts so he has his friend Sally sell them for him. She gets 2 dollars out of each 10 dollar candy bar purchase. How much money will Sally get if she sells all 1,000 candy bars. Also please solve for how much she would make if the amount she got every time out of a 10 dollar purchase was 1 dollar, or 3 dollars, or 4 dollars. Thank you all so much for your help this is very urgent

 

 

Answer 1

 

Well if she sells them for $1 each, she earns $1 x 1000 = $1000

      if she sells them for $2 each, she earns $2 x 1000 = $2000

     etc..

 so in this case you multiply.

 

However, Mark has the LOFTY goal of selling them for $10 each, which

if it can be done, would bring in a revenue of $10 x 1000 = $10000.

However, that does NOT happen and she only sells them for $1 each,

which brings in a revenue of $1000. So they met $1000/$10000 = 0.1 = 10%

of their goal. So to figure out WHAT PERCENT they make in terms of their

goal, you divide in this case.

 

The following table summarizes these results

 

        Price      Total Amount     Percent of Goal   Notes/Calculations

         $1           $1000                10%                 $1 x 1000 = $1000; $1000/$10000 = 1/10 = 0.1 = 10%

         $2           $2000                20%                 $2 x 1000 = $2000; $2000/$10000 = 2/10 = 0.2 = 20%

         $3           $3000                30%

         $4           $4000                40%

         $5           $5000                50%

 

I encourage you to finish the calculations in the table and calculate

the next 5 rows for $6,$7,$8,$9,$10