Question

A florist orders roses and carnations. The roses cost $16 per dozen, and the carnations cost $9 per dozen. The florist orders a total of 18 dozens of roses and carnations for a total cost of $218.

How many dozens of roses does the florist order?

A. 6 dozen
B. 8 dozen
C. 10 dozen
D. 12 dozen

Answer 1

Answer: Its 8 dozen

Step-by-step explanation: 1. you multiply 8 times 16 and you get $128

2. you then multiply the remaining carnations by 9. 9 times 10 is $90

3. $128 + $90 is $218

Answer 2

B. 8 dozen

Explanation:

Let r = number of dozens of roses.

Let c = number of dozens of carnations.

c + r = 18

9c + 16r = 218

-9c - 9r = -162

9c + 16r = 218

7r = 56

r = 8

Answer: B. 8 dozen