Answer:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
x
=
−
1
Step-by-step explanation:
4 / 6 = 9 / x, where x is the height of the house
54 = 4x
x = 13.5
the height of the house is 13.5 in
Answer:
57×6 is 342 ,not sure what you mean by the word expression
Answer:

Step-by-step explanation:
Given
--- daily samples

Required
Determine the center line of the p-chart
The question states that, in all the 40 days; the average percentage of incorrect shipments is 5%
And the center line of a p chart is a measure of the expected value of all proportions
This implies that:

