Question

M/4.5 = 2/5 Solve using scale factorI'm not sure how to use scale factor can you help me please?

Answer 1

`(m)/(4.5)=(2)/(5)`

so, m will be calculated as following

find the relation between 4.5 and 5

so,

`(5)/(4.5)=(5\cdot10)/(4.5\cdot10)=(50)/(45)=(5\cdot10)/(5\cdot9)=(10)/(9)`

so, 5 divided by (10/9) will be equal 4.5

so,

m will be equal to 2 divided by (10/9) =

`(2)/((10)/(9))=2\cdot(9)/(10)=(18)/(10)=(9)/(5)=1.8`

This method is called scale factor

Which mean , we have used the scale factor (10/9) to get m/4.5 from 2/5

So, the answer is m = 1.8