What equation describes this variation?
z = kxy
What is the constant of variation?
k = 5
When x = 1 and y = –2, z =
-10
Step by Step Explanation:
With the equation z = kxy and the values for z, x, and y, we can find k.
z = kxy
-75 = (k) (3) (-5)
-75 = (k) (-15)
5 = k
k = 5 (final answer).
To check our work, we just enter all of the values and make sure it adds up.
z = kxy
-75 = (5)(3)(-5)
-75 = 15(-5)
-75 = -75
correct!
Do the same to find the answer for the next part to get -10.
Further proof in the file attached.
Answer:
7z
Step-by-step explanation:
Sorry i dont know 5 and 6
Answer:
A
Step-by-step explanation:
2 meters=2000millimeters
50 centimeters=500 millimeters
Answer:
1 2/4
Step-by-step explanation:
3/4 doubled is
Now, on simplification.
Therefore,
3/4 doubled is 1 2/4