X^2 - xy + xy - Y^2
=
X^2 - Y^2
Because
and
are inversely proportional, there is some constant
such that
Given that
and
, we have
So when
, you have
The resistance is proportional to the length.
You know that 45/9=5
So the ratio (proportionality) is 5.
So, for a 75 ft wire, the resistance is 75/5 = 15 ohms
Step-by-step explanation:
3 girls:7 boys
50 students total
You have to multiply 7 by 5 to get 35
If you already multiplied one side by five, then you have to multiply the other side by five
3 times 5 is 15
15 + 35 = 50
So the
Answer is
35 boys
Answer: The answer is B I'm pretty sure
