Answer:

Step-by-step explanation:
Let be "s" the length in meters of the short piece and "l" the lenght in meters of the long piece.
Set up a system of equations:

Apply the Substitution Method to solve the system. Substitute the second equation into the first equation and solve for "l":

Susbstitute the value of "l" into the second equation in order to find the value of "s". This is:

Answer: Function A; 14 meters per seond
Step-by-step explanation:
do Distance/time for Function A: so you can show 140/10, or 280/20, it doesnt matter as they are all constant/consistent.
A has a rate of 14 m/s
B's rate is given, 13 m/s
So A has a faster rate of 14 meters per second
Answer:
x=1
Step-by-step explanation:
Answer:
103/28
Step-by-step explanation:
Let the number be 'x'
Equation:-
7x - 3/4 = 25
7x = 25 + 3/4
7x = 100/4 + 3/4
7x = 103/4
x = 103/(4 x 7)
x = 103/28