Answer:
- Ken is faster by 1 mile per hour
Step-by-step explanation:
<u>Ken's speed</u>
<u>Brenda's speed</u>
<u>Comparing the values, we see that</u>
- Ken is faster by 58 - 57 = 1 mile per hour
Lets just use
for an example. If the number is increased by 60% and the denominator is decreased by 20% we get the new fraction being:
. Since then new one is equal to 1, and the original is equal to
, we see that this manipulation of the fraction causes an increase of 100%.
Answer:
Your question cannot be correct
Step-by-step explanation:
A line passing through points (6,6) and (6,1) cannot have a slope of 5.
This line passing through these two points would be a vertical line. The slope of a vertical line is considered UNDEFINED.
<h3>
Answer: Perpendicular</h3>
=========================================================
Work Shown:
Solve the first equation for y
3x+7y = 15
7y = -3x+15
y = (-3x+15)/7
y = (-3/7)x + 15/7
The slope here is -3/7
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Solve the second equation for y
7x-3y = 6
-3y = -7x+6
y = (-7x+6)/(-3)
y = (7/3)x - 2
The slope here is 7/3
-------
The slopes -3/7 and 7/3 are not equal, so we don't have parallel lines.
The lines however are perpendicular because the slopes multiply to -1
(-3/7)(7/3) = (-3*7)/(7*3) = -21/21 = -1
49/10 This is the improper way
