Answer:
Step-by-step explanation:
John's age = w
His brother's age = 2*w = 2w
His sister's age = 16 years
Total age of all siblings = 31
w + 16 + 2w = 31
w + 2w + 16 = 31
Combine like terms
3w + 16 = 31
Subtract 16 from both sides
3w = 31 - 16
3w = 15
w = 15/3
w = 5

His brother's age = 2w
= 2*5
= 10

Answer:
B.) 0.03288%
Step-by-step explanation:
I hope this helps you :)
The greatest value would be something like this: What is the value of 3 in 3,829 compared to the value of 3 in 2,693? Choose the number in which 3 has the greatest value.
Answer:
B
Step-by-step explanation:
because thet is my answer
There are 12 inches in every foot 5 x 12 is 60 half a foot would be 12÷2=6 so 60+ 6=66 inches