A piece of rubber band was stretched by 25%to a length of 40 cm. what is the unstretched original length.
Answers
Answered by
0
hope it works .........
Attachments:
Answered by
1
Let the original length be x
Percent by which elastic is stretched = 25%
25% of elastic= 25/100× x = 25x/100 = x/4
x + x/4 = 40
(4x+x)/4 = 40
5x/25 = 40
5x = 40×25 = 1000
x = 1000/5 = 200 cm
plszzz mark as brainliest answer !!!
Percent by which elastic is stretched = 25%
25% of elastic= 25/100× x = 25x/100 = x/4
x + x/4 = 40
(4x+x)/4 = 40
5x/25 = 40
5x = 40×25 = 1000
x = 1000/5 = 200 cm
plszzz mark as brainliest answer !!!
Similar questions