A telephone poll asked people whether they like playing golf. Of the 10,000 people polled, 5% like playing golf. How many people
1 answer:
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Answer:
w = 1.6
Step-by-step explanation:
Given w varies inversely as then the equation relating them is
w = ← k is the constant of variation
To find k use the condition when x = 4, w = 4
k = w = 4 ×
= 4 × 2 = 8
w = ← equation of variation
When x = 25, then
w = =
= 1.6
Step-by-step explanation:
Given expression;
2x + y = -5;
The given equation must be written in a form where the slope is the negative inverse of the given one.
A line perpendicular to another will have a negative inverse slope.
2x + y = -5
Equation of a straight line is generally written as;
y = mx + c
y and x are the coordinates
m is the slope
c is y - intercept
2x + y = -5
y = -2x -5
The slope of the perpendicular =
So,
the new line;
y = x -5
Any line with slope of will be perpendicular