Answer: $310,000
Step-by-step explanation:
In 40 additional years, the amount she made less than her college counterparts was;
= 10,000 * 40
= $400,000
She however made $90,000 more than them as they went to college;
= 400,000 - 90,000
= $310,000
The long-term financial cost was $310,000.
It's absolutely correct..............
Answer:
86
Step-by-step explanation:
Firstly,
Average = Sum/Number of Numbers
Since 7 grades' average is 77, so we can say:
77 = Sum/7
Hence, Sum = 77 * 7 = 539
Now,
81 - 18 = 63 [63 marks were recorded incorrectly. actual sum would be 63 more]
So,
Actual Sum should be 539 + 63 = 602
Actual Average = 602 / 7 = 86
Hence, actual report card average would be 86
It's 1,000,000:
<span>the sum is 1 + 3 + 5 + ... 1999999 </span>
<span>= 1 + 2 + ... + 2000000 - 2*(1 + ... + 1000000) </span>
<span>= 2000000*2000001/2 - 2*(1000000*1000001 / 2) </span>
<span>= 1000000*(2000001 - 1000001) = 1000000000000 (one million million) </span>
<span>and dividing this by one million to get the average, </span>
<span>you get one million</span>
