Answer:
k = 7
Step-by-step explanation:
given y varies jointly with x and w then the equation relating them is
y = kxw ← k is the constant of variation
to find k use the condition when y = - 42, x = 2 and w = - 3 , then
- 42 = k × 2 × - 3
- 42 = - 6k ( divide both sides by - 6 )
7 = k
constant of variation is k = 7
The answer is B because the question states that the temperature at noon was 8 degrees below zero Celcius. 8 degrees below zero Celcius is written as -8 degrees.
A) The answer is 88
B)I don't know how to do it
3)I don't know
Sorry I tried
The first one -8-13-18
calculate it
