Molly and Arthur are taking their daughter Ginny on a roller coaster ride. For safety, they need to find their total weight befo
re getting into the same car. Molly’s weight is MMM kilograms, Arthur’s weight is AAA kilograms, and Ginny’s weight is GGG kilograms. The expression (M+A)+G(M+A)+Gleft parenthesis, M, plus, A, right parenthesis, plus, G describes their total weight. We can also use the expression A+(G+M)A+(G+M)A, plus, left parenthesis, G, plus, M, right parenthesis to represent the same quantity.
Match each amount in the situation with the expression that represents it.
This phrasing is unusual, but let's attempt to tackle it:
M stands for Molly's weight
A represents Arthur's weight
G signifies Ginny's weight.
We can express the total weight as:
(M + A) + G
or alternatively as:
A + (G + M)
the first configuration illustrates Molly and Arthur's weights combined (hence their weight is presented as a single value), followed by Ginny's weight calculated separately.
The second configuration indicates Arthur's weight on its own, while Ginny and Molly's weights are combined (which is why their total weight appears as a single value)
<span>Real numbers can be either rational or irrational. sqrt(13) ≈ 3.60555 sqrt(14) ≈ 3.74166 A simple nearby rational approximation is 3.7 = 37/10. An example of an irrational number between them is sqrt(27/2).</span>
Short Answer: Current speed = 3 miles per hour. Given details for downstream distance of 4.48 miles at time 0.32 hours and upstream distance of the same 4.48 miles taking 0.56 hours. Using the equation d = r*t, we equate distances for both directions leading to a function in terms of the current speed. With each correction to solve ultimately yields the current speed as 3 mph.
