Answer: x = 12
Step-by-step explanation:
25(6) + [8(6-s)] = t, where s = number of hours and t = total.
20
Step-by-step explanation:
Step 1:
Let the number be 50 and to find 40% of 50 is given interms of expression as follows
To express the percentage the following strategy is used
Eg: 40% = 
∴ To express 40% of 50 is

Step 2:
On simplification the above expression we could get

= 20