Then, we have the following equation to solve this problem:
we solve this equation.
We find out the measure of each side:
Answer. the length of the sides would be 7.5 cm, 10 cm and 12.5 cm.
the answer is c option
3x + 4x + 5 x = 30
12 x = 30
Divide by 12
x = 2.5
3x = 7.5 (2.5x3)
4x = 10 (2.5x4)
5x = 12.5 (2.5x5)
7.5cm + 10cm +12.5cm = 30cm There are your three sides.
the total is 23.97. 0.25% is off so you have to subtracting 25% from 100% and you will get 75% if you convert it to decimal you will get 0.75. you have to find the original because the formula is % times original = total.so you have the total and the % so you just have to plug it in.