Answer: The answer is NO.
Step-by-step explanation: The given statement is -
If the graph of two equations are coincident lines, then that system of equations will have no solution.
We are to check whether the above statement is correct or not.
Any two equations having graphs as coincident lines are of the form -
If we take d = 1, then both the equations will be same.
Now, subtracting the second equation from first, we have
Again, we will get the first equation, which is linear in two unknown variables. So, the system will have infinite number of solutions, which consists of the points lying on the line.
For example, see the attached figure, the graphs of following two equations is drawn and they are coincident. Also, the result is again the same straight line which has infinite number of points on it. These points makes the solution for the following system.
Thus, the given statement is not correct.
Answer:
7500 feet is the lowest sea level or half of the earth
Step-by-step explanation:
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Answer:
40% decrease
50=100
30/50=x/100
30=60% of 50
40% decrease of 50 is 30
Step-by-step explanation:
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Answer:
El lote menor tendrá 1800 m^2
El lote mayor tendrá 2400 m^2
Step-by-step explanation:
Definamos las variables:
M = superficie del lote mayor
m = superficie del lote menor.
Sabemos que el terreno tiene en total 4200 m^2
Entonces:
M + m = 4200 m^2.
Y queremos que el lote menor sea 3/4 del lote mayor, entonces:
m = (3/4)*M
Podemos reemplazar esto en la ecuación de arriba para obtener:
M + ( (3/4)*M) = 4200 m^2.
Y ahora podemos resolver esto para M
M + (3/4)*M = 4200m^2
M*(1 + 3/4) = 4200m^2
M*(4/4 + 3/4) = 4200 m^2
M*(7/4) = 4200m^2
M = (4/7)*(4200m^2) = 2400m^2
Esto significa que la superficie del mayor lote es 2400 m^2
Y la superficie del menor se puede obtener con la ecuación:
m = (3/4)*M
m = (3/4)*2400m^2 = 1800m^2
La superficie del lote menor es 1800m^2
