The answer is 1/7 and can be explained mathematically in the picture
69 of the coins are not nickels.
Answer:
<em>9.3 + b = 14.5</em>
Step-by-step explanation:
We are learning about perimeter.
Look for the formula of the perimeter,
P = a + b + c
The question states "The longest side is twice that of the shortest side."
A is the longest side while b is the shortest side.
The shortest side equation would be found below :
6.2 = 2c
c = 3.1
Making a completion of the longest side :
14.5 = 6.2 + 3.1 + b
14.5 + 9.3 + b
7 1/2 - 1 1/4 = 7 2/4 - 1 1/4 = 6 1/4
Well it really depends because there are four properties of addition; They are commutative, associative, additive identity, and distributive properties.