It is called a negative number. For example, -4 -976 -23 -21
The answer is A.
You subtract 90 from 75 which is 15 the you divide that by 3.
Therefore the answer is 5 degrees (A)
Answer:
8
Step-by-step explanation:
Add all the numbers and then divide them by how many numbers there are.
(14 + 2 + 12 + 11 + 2 + 14 + 3 + 2 + 12) = 72
72/9 = 8
Step-by-step explanation:
The total degrees is always 360. So whe get 360=180+3x. 360-180=3x. 180=3x. x=60. I don't know how you're supposed to get 84 degrees.
Answer:
30 each of 23% bars and 18 each of 79% bars
Step-by-step explanation:
If x is the number of 1 kg 23% copper bars, and y is the number of 1 kg 79% copper bars, then:
x + y = 48
0.23x + 0.79y = 0.44(48)
Substituting and solving:
0.23x + 0.79(48-x) = 0.44(48)
0.23x + 37.92 - 0.79x = 21.12
16.8 = 0.56x
x = 30
y = 48 - x
y = 18
You need 30 each of 23% bars and 18 each of 79% bars.