Fabric 29531

To sew a dress, you need 2 meters of fabric 150cm wide. How many meters of cloth do we need for the same dress if the fabric is only 90 cm wide?

Correct answer:

x =  3.3333 m

Step-by-step explanation:

$$\begin{gathered} s_1=150\text{cm}\to \text{m}=150:100\text{m}=1.5\text{m} \\ S=2\cdot s_1=2\cdot 1.5=3{\text{m}}^2 \\ {s}_2=90\text{cm}\to \text{m}=90:100\text{m}=0.9\text{m} \\ x=S/s_2=3/0.9=3.3333\text{m} \end{gathered}$$

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