Question

9. Extend Your Thinking Georgette bought some craft items. The silk flowers cost three times as much as the ribbon. The ribbon cost two times what the foam cost. The vase cost $12, which was three times as much as the foam. How much did the silk flowers cost?

Answer 1

Given

s: silk flowers

r: ribbon

f: foam

v: vase

Procedure

s = 3r

r = 2f

v = 3f

`\begin{gathered} v=12 \\ 3f=12 \\ f=(12)/(3) \\ f=4 \end{gathered}`
`\begin{gathered} r=2\cdot f \\ r=2\cdot4 \\ r=8 \end{gathered}`
`\begin{gathered} s=3\cdot r \\ s=3\cdot8 \\ s=24 \end{gathered}`

s: silk flowers $24

r: ribbon $ 8

f: foam $ 4

v: vase $12