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
Perimeter: 36
5n + 3 = 36
5 · 6.6 + 3 = 36
N = 6.6
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Perimeter: 36
1/4n + 2 = 36
1/4 · 136 + 2 = 36
N = 136
Hopefully i understood the question correctly :) Hope this helps
Answer:
-5/7
Step-by-step explanation:
-3 3/7 + 2 5/7
-3 - 3/7 + 2 + 5/7
-3 + 2 + 5/7 - 3/7
-1 + 2/7
-5/7
Answer:
22 feet
Step-by-step explanation:
Here is equation
(2 · 1 · 3) + (2 · 1 · 2) + (2 · 3 · 2)
So, I solved using PEMDAS
6 + 4 + 12 = 22
Answer:
3 years
500/100×12=60
Total Interest = 680-500 = 180
Total Time = 180/60 = 3
