Answer:
Step-by-step explanation:
Scale= length on drawing / actual length
Let the actual length b x
3:10=2/5/x
3/10=2/5x
Cross multiply
15x=20
x=4/3
The actual length is 4/3
we are given

we have to subtract
step-1: Distribute negative sign

step-2:Combine like terms


we get
............Answer
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