X = 17
5 = x - 12
12 + 5 = x
17 = x
4/5 = 0.8 yards for each piece of chain
or
1 yd is 3 ft
4 yds = 12 ft
12/5 = 2.4 ft for each piece of chain
It will be 0.6 hope this helps
Answer: Kristina sister's age = 15 years
Step-by-step explanation:
LET the sister's age be rep as x
SO that Kristina = 4/5 of x
Given that Kristina's age = 12 , Then her sister's age can be found using The equation
4/5 x X= 12
4/5 X =12
X = 5 X 12 / 4
=60/4=15
Kristina's sister's age = 15 years.
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