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anonymous
 one year ago
David is selling floral arrangements. Each arrangement uses 1 vase and 12 roses. Each vase costs David $2.00. Let C be the total cost of the arrangement and r be the cost of 1 rose. Which equation should David use to find the total cost of each arrangement?
C = 12r + 2
C = 2r + 12
12C = r + 12
12 = C + 2r
anonymous
 one year ago
David is selling floral arrangements. Each arrangement uses 1 vase and 12 roses. Each vase costs David $2.00. Let C be the total cost of the arrangement and r be the cost of 1 rose. Which equation should David use to find the total cost of each arrangement? C = 12r + 2 C = 2r + 12 12C = r + 12 12 = C + 2r

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mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0If 1 rose costs r dollars, how much do 12 roses cost? What operation do you do to find that out?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0example : if 1 orange costs $2, then 5 oranges cost 5(2) = $10 you multiply so if 1 rose costs r, then 12 roses cost ??

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.01 rose costs r dollars 2 roses cost r + r = 2 * r = 2r dollars 3 roses cost r + r + r = 3 * r = 3r dollars 4 roses cost r + r + r + r = 4r dollars 5 roses cost 5r dollars 6 roses cost 6r dollars etc. 11 roses cost 11r dollars 12 roses cost ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I can't explain it any easier then that ^^

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0Correct. The 12 roses cost 12r dollars. That is only part of the total cost. The other part of the cost is the vase. The vase costs $2, and that cost of $2 has to be added to the 12r cost of the roses. Which expression in the choices shows that C, the cost, is $2 added to 12r?
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