Question

Two-fifths of a number is decreased by three. Find the value of the expression if the number is twenty-five.

Answer 1

Let's take the number as x.

two-fifths of a number = 2x / 5
decreased by 3 = (2x/5) - 3

(2x/5) - 3
(2*25/5) - 3
(2*5) - 3
10 - 3
7 

Answer 2

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