It does represent a direct variation.
Direct variation: y = kx
y varies directly with x
Your equation 2y = 5x + 1 is in the form of y = kx but we need to divide out the 2 from 2y so we have the following
2y = 5x + 1
2y / 2 = 5 x/ 2 + 1/2
y = 5x / 2 + 1/2
y = kx
k = 5/2
k = constant of variation = 5/2
Answer:
-3, -13, -23, -33, -43
Step-by-step explanation:
An atithmetic sequence has a common difference between each term
in -3, -13, -23, -33, -43
the difference between terms is a constant -10
K • 60 = 54
54 : 60 = 0.9
0.9 • 60 = 54
So the value of k is 0.9
Answer:
They sell 327 + 451 = 778 drinks on both days