We have that an inverse variation in a function is given by:

We must find the value of the constant k.
To do this, we substitute the values of x1 = 12, y1 = 15.
We have then:

Clearing k we have:

Substituting the value of k we have that the inverse variation is:

For y2 = 3 we have:

Clearing x2 we have:
Answer:
Answer:
66+33
Step-by-step explanation:
42+57= 99
__________
My expression
66+33= 99
Hope this helps!
-Payshence
All you have to do is add exponents when multiplying like monomials. So it's just 4^2
Answer:
20%
Step-by-step explanation:
Write the problem as a mathematical expression.
63/315
Convert to decimal
0.2
Times by 100
0.2 times 100
20%
Answer: B
Step-by-step explanation: