Answer:
79% decrease
Step-by-step explanation:
Subtract 6400-1344=5056
Find percent decrease (5056/6400)x100=79
79% decrease is our final answer
x=4
3x+x - 2x + 8= 3x + x
4x- 2x +8 = 4x
2x + 8= 4x
8= 2x
Everything has been explained in there
each peice will be 1/15 m long.