Question 83347
Hello there,

I divided your question into two parts.

i) Since Terry is selling 3 flowers + 1 free flower for $4.5, the price can actually be denoted as 4 flowers/$4.50. Do you see why? The flower is free so I add 1 to the price without adding more money to $4.5.

Now, Mrs. Greenthumb wants 20 flowers so you write up a ratio:

4/4.50 = 20/x  <-- x represents the amount Mrs. Greenthumb pays. 

Find x and you have your answer.


ii) Similar to part i), you write another ratio based on the fact that you get 4 flowers for $4.5.

4/4.5 = x/$27 <-- x represents the number of flowers Mrs. Greenthumb receives. Note that x is now on the top (numerator).


Find x and you have your answer.