<span>An actor invested some money at 9% simple interest, and $42,000 more than three times the amount at 12% per annum. </span><span>What we are after is amounts of interest invested at 9% and at 12%. Let's call them x and y respectively.
x=42000 at 9% = </span>$3,780.00 = $45,780.00
y=3x42000 at 12% = $15,120.00 = $141,120.00
x+y=$186,900.00
Answer:
the first one
Step-by-step explanation:
the two lines are on top of each other. The second one is not it because where they meet is at 1 point so there is one solution. The third one can't be it either because the two lines never cross each other so the last one has no solution.
Answer:
Therefore, the mean and the standard deviation for the number of electrical outages (respectively) are 0.26 and 0.5765 respectively.
Step-by-step explanation:
Given the probability distribution table below:
(a)Mean
Expected Value, 
=(0*0.8)+(1*0.15)+(2*0.04)+(3*0.01)
=0+0.15+0.08+0.03
Mean=0.26
(b)Standard Deviation
Standard Deviation 
Therefore, the mean and the standard deviation for the number of electrical outages (respectively) are 0.26 and 0.5765 respectively.
Answer:
3 seconds
Step-by-step explanation:
SO if it ran 75 meters at a speed of 25 meters per second then you have to divide how many meters it ran by how many meters it took per second to find out how long the cheetah was running
75÷25=3
3 IS THE ANSWER
