It is 80*81/2 = 3240
463
61 + 67 + 71 + 73 + 79 = 351
There are four pairs of prime integers whose sum is 80. They are: (7, 73) (13, 67) (19, 61) (37, 43)
It is: 8+16+24+32 = 80
The first ten positive integer multiples of 80 are: 1 x 80 = 80 2 x 80 = 160 3 x 80 = 240 4 x 80 = 320 5 x 80 = 400 6 x 80 = 480 7 x 80 = 560 8 x 80 = 640 9 x 80 = 720 10 x 80 = 800
The sum of the first sixteen numbers of pi is 80.
40 * * * * * The correct answer is 6400.
Two numbers have a product of 80 their sum is 24?
The numbers are: -10 and -8
929
463
25,20,5,30
172
3240
Average of five numbers is 82 so their sum is 82*5 = 410. Average of four of them is 80, so their sum is 80*4 = 320. So the fifth number is 410 - 320 = 90.
269
351