Question

Marco is selling floral arrangements. Each arrangement uses 1 vase and 11 orchids. Each case cost Marco $4.00. Let C be the total cost of the arrangement and r be the cost of 1 orchid. Which equation should Marco use to find the total cost

A. 11= C + 4r
B. 11C = r + 4
C. C= 4r + 1
D. 11r + 4

Answer 1

1. The information given in the problem is:

- Each arrangement uses 1 vase and 11 orchids.
- Each case cost Marco $4.00.
- C: the total cost of the arrangement.
- r: the cost of 1 orchid.

2. Therefore, you must multiply the cost of 1 orchid by the 11 orchids that he uses in each arrangement, and then, you must add the cost of 1 vase, as below:

C=11r+4

3. Finally, you can conclude that the correct answer is the last option:

D)C=11r+4