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marusya05 [52]
3 years ago
6

Y is directly proportional to x.y is 30 and x is 6 work out the equation linking x and y

Mathematics
1 answer:
kap26 [50]3 years ago
8 0

Answer:

y = 5x

Step-by-step explanation:

Given that y is directly proportional to x then the equation relating them is

y = kx ← k is the constant of proportionality

To find k use the condition that y = 30 when x = 6

k = \frac{y}{x} = \frac{30}{6} = 5

y = 5x ← equation of proportion

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