Y=4x - 1 and 12x=3y + 7

1 answer:

7 0

For this problem, I think the question is to find the values of x and y. Since there are two unknowns and two equations, this system may be solvable. But let's investigate first if the equations are independent.

y = 4x - 1 ----> eqn 1
12x = 3y + 7 ---> eqn 2

Substituting eqn 1 to eqn 2:
12x = 3(4x - 1) + 7
12x = 12x -3 + 7
12x - 12x = 7 - 3
0 = 4

It turns out that the system is not solvable because x cancels out. That means that the two given equations are dependent with each other.

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Step-by-step explanation:

For a standard normal distribution, (with mean 0 and standard deviation 1), the lower and upper quartiles are located at -0.67448 and +0.67448 respectively. Thus the interquartile range (IQR) is 1.34896.

And the manager decides to reject a tire as underweight if it falls more than 1.5 interquartile ranges below the lower quartile of the specified shipment of tires.

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Using data from the normal distribution table

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