Answer: There are 3 tons of chlorine sold on Friday.
Explanation:
Since we have given that
Number of tone of chlorine on Monday = 2.4
Number of tone of chlorine on Tuesday = 4.4
Number of tone of chlorine on Wednesday = 1.8
Number of tone of chlorine on Thursday = 2.8
Total number of week's sales = 14.4 tons
So, we need to find the number of tone of chlorine on Friday.
According to question we get that
![14.4=2.4+4.4+1.8+2.8+x\\\\14.4=11.4+x\\\\x=14.4-11.4\\\\x=3](https://img.qammunity.org/2020/formulas/mathematics/middle-school/5ngmhr01urg6bt05v57h0x9ok47wya45vp.png)
Hence, there are 3 tons of chlorine sold on Friday.