Pick 100 km for D...
<span>This would yield T=100 minutes </span>
<span>Using the question stem we calculate 80 km were traveled in 1h (or 60 minutes).... </span>
<span>This leaves us with 40 minutes (2/3 of an hour) to travel 20km..... </span>
<span>R*T=D </span>
<span>R*2/3=20 </span>
<span>R=30 </span>
<span>Answer A....</span>
Answer:
k = g(x)/f(x)
Step-by-step explanation:
Unless there is more to the question, the answer is g(x) / f(x) = k
You just need to divide both sides by f(x)
Here's an example
f(x) = 20x + 40
g(x) = 80x + 160
k = g(x)/f(x) = (80x + 160) / (20x + 40) = 4*(20x + 40)/(20x + 40)
k = 4
Answer:
30% of the pages are arithmetic, or 108 pages
Step-by-step explanation:
50% are on algebra = 180 pages
360 x .5 = 180
20% are on geometry = 72 pages
360 x .2 = 72
30% are on arithmetic = 108
180 + 72 + 108 = 360 pages
50% + 20% + 30% = 100%
trials and with success probability 
, the mean 
and standard deviation 
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