Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

{:[(6)/(5)p+kq=(4)/(5)],[q=(3)/(5)p-(2)/(5)]:}
Consider the system of equations, where 
k is a constant. For which value of 
k is there no 
(p,q) solutions?
Choose 1 answer:
(A) -2
(B) 0
(c) 2
(D) None of the above

65p+kqamp;=45qamp;=35p25 \begin{aligned} \frac{6}{5} p+k q & =\frac{4}{5} \\ q & =\frac{3}{5} p-\frac{2}{5} \end{aligned} \newlineConsider the system of equations, where k k is a constant. For which value of k k is there no (p,q) (p, q) solutions?\newlineChoose 11 answer:\newline(A) 2-2\newline(B) 00\newline(C) 22\newline(D) None of the above

Full solution

Q. 65p+kq=45q=35p25 \begin{aligned} \frac{6}{5} p+k q & =\frac{4}{5} \\ q & =\frac{3}{5} p-\frac{2}{5} \end{aligned} \newlineConsider the system of equations, where k k is a constant. For which value of k k is there no (p,q) (p, q) solutions?\newlineChoose 11 answer:\newline(A) 2-2\newline(B) 00\newline(C) 22\newline(D) None of the above
  1. Analyze Equations: Analyze the system of equations to understand when there would be no solutions.\newlineA system of linear equations has no solutions when the lines represented by the equations are parallel. This happens when the coefficients of the variables are proportional, but the constants are not.
  2. Standard Form: Write the system of equations in a standard form to compare the coefficients.\newlineThe given system is:\newline(65)p+kq=(45)(\frac{6}{5})p + kq = (\frac{4}{5})\newlineq=(35)p(25)q = (\frac{3}{5})p - (\frac{2}{5})\newlineWe need to express qq from the second equation in terms of pp and substitute it into the first equation.
  3. Substitute qq into First: Substitute the value of qq from the second equation into the first equation.\newline(65p+k(35p25))=45(\frac{6}{5}p + k(\frac{3}{5}p - \frac{2}{5})) = \frac{4}{5}\newlineNow distribute kk into the terms inside the parentheses.
  4. Distribute and Simplify: Distribute kk and simplify the equation.(65p+3k5p2k5)=45\left(\frac{6}{5}p + \frac{3k}{5}p - \frac{2k}{5}\right) = \frac{4}{5}Combine like terms.(65+3k5)p2k5=45\left(\frac{6}{5} + \frac{3k}{5}\right)p - \frac{2k}{5} = \frac{4}{5}
  5. Combine Like Terms: Combine the coefficients of pp.[(65+3k5)p(2k5)=(45)]\left[\left(\frac{6}{5} + \frac{3k}{5}\right)p - \left(\frac{2k}{5}\right) = \left(\frac{4}{5}\right)\right][(6+3k5)p(2k5)=(45)]\left[\left(\frac{6 + 3k}{5}\right)p - \left(\frac{2k}{5}\right) = \left(\frac{4}{5}\right)\right]Now we have the equation in terms of pp with the coefficients clearly visible.
  6. Combine Coefficients: Determine the condition for no solutions.\newlineFor there to be no solutions, the coefficients of pp must be the same on both sides of the equation, but the constants must be different. Since there is no pp term on the right side of the equation, the coefficient of pp on the left side must be zero.\newlineSo, we set the coefficient of pp to zero:\newline(6+3k)/5=0(6 + 3k)/5 = 0
  7. Condition for No Solutions: Solve for kk.\newlineMultiply both sides by 55 to get rid of the denominator:\newline6+3k=06 + 3k = 0\newlineNow, solve for kk:\newline3k=63k = -6\newlinek = 6/3-6 / 3\newlinek=2k = -2

More problems from Domain and range