Answer:
B. 
Step-by-step explanation:
Given:
Hence Solving the given expression we get;
By Law of Indices which states;
Hence we get;
Also We know that
So,
Ya I believe that is the answer. I got the exact same thing.
Logan's swimming average is 2.25 kilometers per hour.
Mila's swimming average swimming speed is 34.44 m/min.
The distance swam by Logan = 750 m
The distance swam by Mila = of Logan's distance = × 750 = 2 × 250 = 500.
Answer: 31 : 9
Step-by-step explanation:
Assume the following:
Alice's amount = P
Bob's amount = Q
Amount received = n
If Alice receives $n$ dollars from Bob ;then she will have $4$ times as much money as Bob.
P + n = 4(Q - n)
P + n = 4Q - 4n
P = 4Q - 4n - n
P = 4Q - 5n - - - - (1)
If, on the other hand, she gives $n$ dollars to Bob, then she will have $3$ times as much money as Bob
P - n = 3(Q + n)
P - n = 3Q + 3n
P = 3Q + 3n + n
P = 3Q + 4n - - - - - - (2)
Equating both equations - (1) and (2)
4Q - 5n = 3Q + 4n
4Q - 3Q = 4n + 5n
Q = 9n
Express P in terms of n, use either equation (1) or (2)
From equation 2:
P = 3Q + 4n
Substituting Q = 9n
P = 3(9n) + 4n
P = 27n + 4n
P = 31n
Alice's amount = P, Bob's = Q
Ratio = P:Q
31 : 9
There are 144 inches in 12 feet.
