There are 3 cans that store 9 tennis balls consider the number of balls per can find the constant of proportionality for this situation and write an equation to represent the relationship

y = 3x,

Where, x = number of cans,

y = number of balls.

Step-by-step explanation:

If the we consider the number of balls per can,

Number of balls ∝ number of can,

If x represents the number of cans and y represents the number of balls,

⇒ y ∝ x

⇒ y = kx

Where,

k = constant of proportionality,

if x = 3, y = 9

Thus, the required equation that shows the given relation would be,

y = 3x

answer: 20

step-by-step explanation: