60
Supplementary angles add up to 180° → supplementary to 30° is 180° - 30° = 150°. Complementary angles add up to 90° → complementary to 30° is 90° - 30° = 60°.
21/30 + 8/30 = 29/30
35
The answer is: 20/2 plus 30 = 40
Half is the same thing as .5 so you divide 30 by .5 and you get 60 then you add 10 so it is 70. TADA!!!
13 add something equals 30 = 43
factors of 30 that add to 17 are 2 and 15
The correct answer is: 1000+40+1000+30+1000+20+1000+10 = 4100
The two numbers that multiply to -30 and add up to 13 are 15 and -2. When you multiply 15 and -2, you get -30, and when you add them together, you get 13.
46
36
Supplementary angles add up to 180° → supplementary to 30° is 180° - 30° = 150°. Complementary angles add up to 90° → complementary to 30° is 90° - 30° = 60°.
It is impossible for three prime numbers less than 30 to add up to 1955. After all, 30+30+30 is only 90.
10%+30%=40%
1000 + 1000 + 1000 + 1000 + 40 + 30 + 20 + 10 = 4100
21/30 + 8/30 = 29/30
-30 and -30 -30 + -30 = -60 -30 x -30 = 900