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Flura [38]
3 years ago
9

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?
A. C = 2r + 12
B. 12C = r + 12
C. 12 = C + 2r
D. C = 12r + 2 5 points
Mathematics
1 answer:
Rasek [7]3 years ago
5 0

Answer:

D. C = 12r + 2

Step-by-step explanation:

Since we don't know the total cost of the roses (r) we will multiply the total number of roses by (r) And since we know the total price of the vase ($2) and there is only one is isn't multiplied by anything.

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See missing answers bold

$20 original = $5 final paid           as $15 was s/p before -10 was added

$30 original = $14 final price        as $24 was s/p before -10 was added

$60 original = $35  final price    as $45 was s/p before -10 was added

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Step-by-step explanation:

Ans in bold  

A) = f(x) = 20(0.75) -10 =  15 - 10  = $5                 = £5 final paid

B)= f(x)  30 (0.75) = 24 - 10 = 14                           = $30 original price

C)  = f(x) = 60(0.75) -10 = 45 -10 = $35               = $35 final price

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