The Pythagorean Proposition can help you explain this:
The answer is 345 because you are suppose to multiply then add them togther
1- 1 2/5
2- 4 1/2
3- 1 1/8
4- 1 5/6
5- 12/17
Have a good day
Answer: x = 10.3 ÷ 4
Step-by-step explanation: if we were to work this out forgetting about the equation it can be worked out by dividing the 10.3 by 4 to find the length of the pieces so, now to express it as an equation, we have to add x into our sum 4 × ? = 10.3 : 4x = 10.3. The answer for x would be x = 2.58.