The cost of 300 cm fabric is $15.
Step-by-step explanation:
Given,
Cost of fabric is $5 per meter.
To find the cost of 300 cm fabric.
1 m = 100 cm
We will apply unitary method.
Cost of 100 cm of fabric is $5
Cost of 1 cm of fabric is $[tex]\frac{5}{100}[/tex]
Cost of 300 cm of fabric is $[tex]\frac{5}{100} X300[/tex]
= $ 15
Hence,
The cost of 300 cm fabric is $15.