9514 1404 393
Answer:
14 +2i
Step-by-step explanation:
For this sort of problem, you can treat i as though it were a variable. Combine like terms.
(8 -7i) +(6 +9i) = (8 +6) +(-7 +9)i
= 14 +2i
Im not really sure so ill just give it a try.
mayeb 70? ten less"
Answer:
The speed of the boat in still water is 10 miles / hour
Step-by-step explanation:
The trip there, and the trip back are the same -- 30 miles
Let the rate of the boat = x
Let the rate of the water = y
30 = 2*(x + y)
30 = 6*(x - y)
Divide the top equation by 2
Divide the bottom equation by 6
15 = x + y
<u>5 = x - y </u> Add the equations together.
20 = 2x Divide by 2
20/2 = x
x = 10
Step-by-step explanation:
<h3><u>Required Answer</u><u>:</u><u>-</u></h3>
- Total number of fruits=36
Let
the number of oranges =x
The number of apples=x+12
<h3>ATQ </h3>
- Number of Apples =12+12=24
