Question

6cm are cut from a 34cm board. What is the percent decreased in length?

a) 15.7%
b) 17.6%
c) 12.5%
d) 23.5%

Answer 1

The percent decreased in length is 17.6%.

Step-by-step explanation:

To find the percent decreased in length, we need to calculate the difference between the original length and the length after the cut, and then divide that by the original length.

The original length is 34cm and after cutting 6cm, the new length is 28cm.

The decrease in length is 34cm - 28cm = 6cm.

Then we divide the decrease by the original length: 6cm / 34cm = 0.176.

To convert this to a percentage, we multiply by 100: 0.176 * 100 = 17.6%.

Therefore, the percent decreased in length is 17.6%.