140 - 35 = 105
x < 35 + 35 + 15x < 85x > 40 x 2x > 80Therefore x is between 81 to 84 (inclusive).The only number in this range in which the digits sum to 9 is 81.
57
If seven less than half of the number is 35 then 7 plus 35 must be half of the number. 7 + 35 = 42 and if that is half the number the whole number must be 42 x 2, which is 84.
35 in 36, or about 0.9722
35 of them.
35
x < 35 + 35 + 15x < 85x > 40 x 2x > 80Therefore x is between 81 to 84 (inclusive).The only number in this range in which the digits sum to 9 is 81.
35 is a deficient number because the sum of its proper divisors is less than the number itself.
57
If the sum of all a number's factors (apart from itself) is equal to the original number, then the number is perfect. If this sum is less than the number, it is deficient. If the sum is more than the number, it is abundant. The factors of 70 are: 1, 2, 5, 7, 10, 14, 35 and 70. 1+2+5+7+10+14+35 = 74. Thus the number 70 is abundant.
3x - 35
Prime number which is greater than 30 and less than 35 is 31.
If seven less than half of the number is 35 then 7 plus 35 must be half of the number. 7 + 35 = 42 and if that is half the number the whole number must be 42 x 2, which is 84.
35 in 36, or about 0.9722
29 + 35 = 64 35 - 29 = 6 Therefore, the two numbers are 29 and 35.
35 of them.
31