ken bought d dozen roses for r dollars represent the cost of one rose
A. r/d
B. 12d/r
C. 12r/d
D. r/12d
Suppose you had actual numbers here:
Kken bought 5 dozen roses for $72.00 dollars represent the cost of one rose
What steps would you take to find the cost of 1 rose to be $1.20 ?
Now repeat those same steps using the variables d and r.
you can always multiply by 1 without changing anything. So your conversion from roses to dollars goes like this:
1 rose * 1 dozen/12 roses * r dollars/d dozen = r/12d dollars/rose
To represent the cost of one rose, we need to divide the total cost of the roses by the number of roses.
The given information states that Ken bought d dozen roses for r dollars. Since a dozen consists of 12, Ken actually bought 12d roses.
Therefore, the cost of one rose would be the total cost of the roses (r dollars) divided by the total number of roses (12d roses).
So, the correct representation for the cost of one rose is option A: r/d.