Answer:
7
Step-by-step explanation:
Let x be the number .
Two- fifth of a number=\(\frac{2}{5}x\)
Now, it is decreased by 3=\(\frac{2}{5}x-3\)
We have to find the expression if the number is 25.
To find the value of expression we will substitute x= 25 in the expression.
The expression is given by
\(\frac{2}{5}x-3\)
Substitute x=25
Then, we get
\(\frac{2}{5}\times 25-3=10-3=7\)
Hence, the value of expression if the number is 25=7
