4x + 7 = 99
subtract seven from both sides
4x = 92
divide each side by four
x = 23
9+90=99 (90 is ten times as much as 9)
Their sum is 99.
Smallest 2 digit number is 10. 10 + 99 = 109
The sum of 2 and 97 is 99.
49 of them.
9+90=99 (90 is ten times as much as 9)
(15+7) +99
Their sum is 99.
99 + 9/9 = 99 + 1 = 100
Smallest 2 digit number is 10. 10 + 99 = 109
The sum of 2 and 97 is 99.
49 of them.
33 66+33=99
The sum of the integers 1 to 99 is 4950. An easy way to figure this out is using the equation N*(N+1)/2 where N is the largest number in the set.
One possible answer is 1 times 99.
99 + 9 = 108
It is: 2+97 = 99