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3 years ago

If x and y vary directly and x=25 when y=100 find x when y=24. PLEASE HELP FASTTTTTTT

Mathematics

1 answer:

Veseljchak [2.6K]3 years ago

6 0

Answer:

x = 6

Step-by-step explanation:

Given that x and y vary directly then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition x = 25 when y = 100 , then

100 = 25k ( divide both sides by 25 )

4 = k

y = 4x ← equation of variation

When y = 24 , then

24 = 4x ( divide both sides by 4 )

6 = x

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