Answer:
8.2
Step-by-step explanation:
That isn’t right I don’t think, if a was 47 then it would be wayyyy bigger of a number. You are finding how 7a-2 is 47. First add 2 to both sides making it 7a=49
7 times what is 49?
That is a
Answer:
25 grams
Step-by-step explanation:
Three half live
1/2 * 1/2 * 1/2 = (1/2)³ = 1/8
There would be 1/8 of the original amount left
185 * 1/8 = 23.125
Rounded
25 grams
Answer:
-3.5
Step-by-step explanation: 33/6= 5.5 5.5-9= -3.5
Arctan(3/5) ≈ 0.5 . . . . . radians
.. ≈ 31.0 . . . . . . . . . . . . . degrees
